Showing results for a rectangular brick has a length of 5 centimeters a width of 9 centimeters and a height of 20 centimeters what is the surface area of that brick

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Answer 1

The surface area of the rectangular brick can be calculated by adding up the areas of all its faces. The surface area of the rectangular brick is 650 square centimeters.

The given dimensions of the brick are:

Length = 5 centimeters

Width = 9 centimeters

Height = 20 centimeters

To find the surface area, we need to calculate the areas of the six faces of the brick. The rectangular brick has three pairs of equal faces: top and bottom, front and back, and left and right sides.

The area of each face can be found by multiplying the length by the width.

The top and bottom faces have the same dimensions, so each face has an area of 5 cm * 9 cm = 45 square centimeters.

The front and back faces also have the same dimensions, so each face has an area of 5 cm * 20 cm = 100 square centimeters.

The left and right side faces also have the same dimensions, so each face has an area of 9 cm * 20 cm = 180 square centimeters.

To find the total surface area, we add up the areas of all the faces:

Total Surface Area = 2 * (45 + 100 + 180) = 2 * 325 = 650 square centimeters.

Therefore, the surface area of the rectangular brick is 650 square centimeters.


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Related Questions

The two-way table shows poll results for the number of athletes and nonathletes who take the stairs or the elevator at work. Of the people polled, how many take the elevator? Enter your answer in the box. People Stairs Elevator Athletes 10 3 Nonathletes 7 16.

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The total number of people who take the elevator is 19.

Based on the given two-way table, the number of people who take the elevator is found in the "Elevator" column, which includes both athletes and non-athletes.

Looking at the "Elevator" column, we can see that the number of athletes who take the elevator is 3, and the number of non-athletes who take the elevator is 16.

To find the total number of people who take the elevator, we add the number of athletes and non-athletes who take the elevator:

3 (athletes) + 16 (non-athletes) = 19

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Pedro adds 1. 25 moles of helium to a balloon that already contained 4. 51 moles of helium creating a balloon with a volume of 8. 97 liters. What was the volume of the balloon before the addition of the extra gas?

Answers

The volume of the balloon before the addition of the extra gas was 7.01 liters.

What was the volume of the balloon before the addition of the extra gas?

We will use ideal gas law equation, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant and T is the temperature.

Given data:

Initial number of moles of helium in the balloon (before addition) = 4.51 moles

Additional number of moles of helium added = 1.25 moles

The total number of moles of helium in the balloon (after addition) is:

= 4.51 moles + 1.25 moles

= 5.76 moles

Volume of the balloon after addition = 8.97 liters

To find the volume of the balloon before the addition, we can rearrange the ideal gas law equation to solve for V:

V = (nRT)/P

The volume before the addition will be found using: V_initial = (n_initial * V_final) / n_final

V_initial = (4.51 * 8.97) / 5.76

V_initial = 7.02 liters.

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The geometric sequence a n =2a n-1 with an initial value of a 1 = 1 8 represents the amount of money a person has saved after n years of investing . (F-BF.1.2) What is the explicit formula for the sequence ? (Use the 2nd row , 6th icon called " Math Equation " to type your answer response). Find the 19th and 20th term in the sequence with your explicit formula .

Answers

the 19th term in the sequence is 150994944 and the 20th term in the sequence is 301989888.

The formula for the n-th term of a geometric sequence is a = arn−1where a is the first term, r is the common ratio, and n is the number of terms.

In the given sequence, a1 = 18, and a n = 2 a n−1 , which is a geometric sequence with common ratio r = 2.

The explicit formula of the sequence is a(n) = a1 x r^(n - 1) where a1 = 18 and r = 2.Using the explicit formula,a(19) = 18 x 2^(19-1) = 18 x 2^18 = 150994944a(20) = 18 x 2^(20-1) = 18 x 2^19 = 301989888

Given a geometric sequence a n =2a n-1 with an initial value of a 1 = 18. Let's find the explicit formula of the sequence.The formula for the n-th term of a geometric sequence is given as:

a = arn−1 Where a is the first term, r is the common ratio, and n is the number of terms. Here, a1 = 18, and a n = 2 a n−1.

Hence the common ratio r is 2.To find the explicit formula for this sequence, we substitute a1 and r in the above formula. Hence the explicit formula for this sequence is given as:

a(n) = a1 x r^(n - 1)where a1 = 18 and r = 2.Let's find the 19th and 20th term in the sequence using this explicit formula.

Substituting n = 19 in the explicit formula, we get,a(19) = 18 x 2^(19 - 1)= 18 x 2^18= 150994944

Substituting n = 20 in the explicit formula, we get,a(20) = 18 x 2^(20 - 1)= 18 x 2^19= 301989888Hence the 19th term in the sequence is 150994944 and the 20th term in the sequence is 301989888

The explicit formula of the sequence is a(n) = a1 x r^(n - 1) where a1 = 18 and r = 2.Using this formula, we have found that the 19th term in the sequence is 150994944 and the 20th term in the sequence is 301989888.

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Suppose you deposited ​$200 in a savings account 2 years ago. The simple interest rate is 3.3%. The interest that you earned in those 2 years is ​$13.20. Which of the following​ is/are true?

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The answer is Option C) The annual interest rate is 3.3%. given that you deposited ​$200 in a savings account 2 years ago and the simple interest rate is 3.3%.

The interest earned in those 2 years is ​$13.20.

Then, we have to choose the true statements from the options below.

Option A) The current balance of the account is $226.40.

Option B) The annual interest rate is 6.6%.Option C) The annual interest rate is 3.3%.Option D) The interest rate for the second year is 3.3%.

Solution:We know that the formula for simple interest is:

Simple Interest (I) = (P × R × T) / 100

Where P is the Principal (amount), R is the rate of interest and T is the time period given.

Let’s first calculate the rate of interest earned per year.

r = (I * 100) / P * t

Rate = (13.2 * 100) / 200 * 2Rate = 6.6%

Therefore, the annual interest rate is 6.6%

Now, we can find the current balance of the account using the formula:

Amount = P + I

Amount = 200 + 13.20

Amount = 213.20

Hence, the statement A is false.

So, the option A is not true.The statement B is false because the annual interest rate is 3.3% only.The statement C is true as it is already found that the annual interest rate is 3.3%.The statement D is false as we have already calculated that the annual interest rate is 6.6%.

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If f(x) = x2, g(x) = 5x, and h(x) = x + 4, find each value.[f ◦ (h ◦ g)](2)

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To solve the given function: f(x) = x², g(x) = 5x, and h(x) = x + 4 for [f ◦ (h ◦ g)](2), we have to calculate for the following steps:

To find [h ◦ g](x), we substitute g(x) into h(x) as follows:

h(g(x)) = g(x) + 4

Substitute g(x) with 5x, we get:

h(g(x)) = 5x + 4

Therefore, [h ◦ g](x) = 5x + 4

To find [f ◦ (h ◦ g)](x), we substitute [h ◦ g](x) into f(x) as follows:

f(h(g(x))) = [h(g(x))]²

Substitute [h ◦ g](x) with 5x + 4, we get:

f(h(g(x))) = [5x + 4]²= (5x + 4)(5x + 4)= 25x² + 40x + 16

Therefore, [f ◦ (h ◦ g)](x) = 25x² + 40x + 16

The final step is to find [f ◦ (h ◦ g)](2). Substitute x = 2, we get:

[f ◦ (h ◦ g)](2)= 25(2)² + 40(2) + 16= 100 + 80 + 16= 196

Hence, we have found that [f ◦ (h ◦ g)](2) = 196.

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The perimeter of ▱PQRS is 124. Find the length of each side of ▱PQRS under the given conditions.RS = SP − 7PQ = RS =QR = SP =

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RS = SP - 7, PQ = RS = QR = SP Perimeter of ▱PQRS = 124We are supposed to find the length of each side of ▱PQRS under the given conditions. Therefore, let us use the formula of the perimeter of a polygon (quadrilateral) to find the length of each side of the polygon.

The formula of the perimeter of a polygon is given by: P = a + b + c + d Where P is the perimeter and a, b, c, and d are the length of each side of the polygon. Let's substitute the given values in the above formula and solve it: P = PQ + QR + RS + SP124 = PQ + QR + RS + SP... (Equation 1)Now, we know that: PQ = RS = QR = SP We can rewrite the equation 1 as follows:124 = PQ + PQ + PQ - 7 + PQ + PQ - 7

Simplifying, we get;124 = 5PQ - 14Adding 14 on both sides;124 + 14 = 5PQ138 = 5PQDividing by 5 on both sides;138/5 = PQPQ = 27.6Now, we know that; PQ = RS = QR = SP We can substitute the value of PQ in any of the above equations. Let's use the equation PQ = RS. Then; RS = 27.6Using the equation; PQ = SPSP = 27.6QR = 27.6Using the equation; RS = SP - 7SP = RS + 7SP = 27.6 + 7 = 34.6Therefore, the length of each side of ▱PQRS is: PQ = 27.6, QR = 27.6, RS = 27.6, SP = 34.6

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The average distance from the Sun to Andromeda galaxy is 1.2 × 10¹9 miles and the speed of light is 5.88 x 10¹2 miles per day. How long does it take for light to travel from the Sun to Andromeda galaxy?​

Answers

Answer:

2,040,816 days ≈ 2.04 × 10⁶ days

Step-by-step explanation:

To calculate the time it takes for light to travel from the Sun to the Andromeda galaxy, we need to use the formula:

[tex]\boxed{\sf Time = \dfrac{Distance}{Speed}}[/tex]

Given:

Distance from the Sun to Andromeda galaxy = 1.2 × 10¹⁹ milesSpeed of light = 5.88 × 10¹² miles per day

Substitute these values into the formula:

[tex]\sf Time=\dfrac{1.2 \times 10^{19}\;miles}{5.88 \times 10^{12}\;miles/day}[/tex]

Simplify the calculation:

[tex]\sf Time=\dfrac{1.2}{5.88} \times \dfrac{10^{19}}{10^{12}}\;days[/tex]

Divide the numbers 1.2 and 5.88:

[tex]\sf Time=0.204081632...\times \dfrac{10^{19}}{10^{12}}\;days[/tex]

[tex]\textsf{Apply the exponent rule:} \quad \dfrac{a^b}{a^c}=a^{b-c}[/tex]

[tex]\sf Time= 0.204081632...\times 10^{19-12}\;days[/tex]

Therefore:

[tex]\begin{aligned}\sf Time&=\sf 0.204081632...\times 10^{7}\;days\\&=\sf 2.04081632...\times 10^{6}\;days\\&=\sf 2,040,816\;days\end{aligned}[/tex]

Therefore, it takes approximately 2.04 million days for light to travel from the Sun to the Andromeda galaxy.

To lease a Chevy Malibu at Sally Sue's Car Dealership, you must pay a $1,500 down payment plus $250 per month. At Billie Jean's Car Dealership, you must pay a $2,200 down payment plus $200 per month. After how many months will the total cost of the car from Sally Sue's dealership be greater than the cost from Billie Jean's.

Answers

After 5 months, the total cost of the car from Sally Sue's dealership will be greater than the cost from Billie Jean's.

Sally Sue's dealership charges $250 per month and a $1,500 down payment. Billie Jean's dealership, on the other hand, charges $200 per month and a $2,200 down payment.

In order to determine after how many months Sally Sue's dealership will cost more than Billie Jean's dealership, a formula can be used.

That formula is: x = the number of months $250x + $1,500 = $200x + $2,200.

After simplification, the equation becomes:50x = 700x = 14

Therefore, Sally Sue's dealership will cost more than Billie Jean's dealership after 5 months.

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Explain why public opinion polls use sample sizes of more than 1000 people instead of using a smaller sample size.

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Public opinion polls use sample sizes of more than 1000 people because it helps to ensure that the results are statistically significant. This means that the results are likely to be accurate and representative of the population as a whole.

The margin of error for a poll is the amount by which the results of the poll could be off from the actual results. The margin of error is calculated using the sample size, the confidence level, and the standard deviation of the population.

The confidence level is the probability that the results of the poll are within the margin of error. The standard deviation of the population is a measure of how spread out the opinions of the population are.

The larger the sample size, the smaller the margin of error will be. This is because the larger the sample size, the more likely it is that the sample will be representative of the population as a whole.

For example, if a poll has a sample size of 1000 people and a confidence level of 95%, the margin of error will be +/- 3%. This means that there is a 95% chance that the results of the poll are within 3% of the actual results.

If a poll has a sample size of 500 people and a confidence level of 95%, the margin of error will be +/- 4.4%. This means that there is a 95% chance that the results of the poll are within 4.4% of the actual results.

As you can see, the larger the sample size, the smaller the margin of error will be. This is why public opinion polls use sample sizes of more than 1000 people. It helps to ensure that the results are statistically significant and that they are likely to be accurate and representative of the population as a whole.

Two runners are running around a circular track. Runner 1 is on the inside lane and runner 2 on the outside. If the lanes are 80 cm wide (ie. The runners will be 80 cm apart), how much of a headstart must runner 1 give runner 2 in order for them to run the same distance? Answer to the nearest metre.

Answers

The headstart that runner 1 must give runner 2 is approximately 0.8 meters, rounded to the nearest meter.

To determine the headstart that runner 1 must give runner 2 in order for them to run the same distance, we need to consider the relative positions of the runners and the width of the lanes.

Let's assume that the circular track has a circumference of C meters. Runner 1 runs along the inner lane, while runner 2 runs along the outer lane, which is 80 cm (0.8 meters) wider than the inner lane.

When runner 1 completes one lap around the track, they will have covered a distance equal to the circumference of the inner lane (C_inner). On the other hand, runner 2 will need to run an additional distance equal to the width of the outer lane (0.8 meters) to complete one lap around the track.

Since both runners need to cover the same distance for their runs to be equivalent, we can set up the following equation:

C_inner = C_outer + 0.8

Now, let's solve for the headstart that runner 1 must give runner 2:

C_inner = C_outer + 0.8

C_inner - C_outer = 0.8

Since the difference in distances between the inner and outer lanes is 0.8 meters, runner 1 needs to start 0.8 meters ahead of runner 2 for them to cover the same distance.

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The perimeter of the rectangle fenced area is 260 meters and the other is labled 3x +10 whats the other side labled x

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The perimeter of rectangle is given by 2 * (length * breadth). The other side of the rectangle labeled x is 120 - 3x.

Let's assume that the rectangle has sides of length L and W. We know that the perimeter of the fenced area is 260 meters, which means that:

2L + 2W = 260

Simplifying this equation, we can divide both sides by 2 to get:

L + W = 130

We also know that one of the sides of the rectangle is labeled 3x + 10. Let's assume that this side is equal to L, so we have:

L = 3x + 10

We can use this equation to substitute L in the previous equation, so we get:

(3x + 10) + W = 130

Simplifying this equation, we can subtract 10 from both sides:

3x + W = 120

Now we have two equations:

L + W = 130

3x + W = 120

We can use the second equation to solve for W in terms of x:

W = 120 - 3x

So the other side labeled x is equal to W, which is:

W = 120 - 3x

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What number comes next in the sequence of 6 1 8 4 2 7

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The next number in the sequence 6, 1, 8, 4, 2, 7 is 3.

To determine the pattern and find the next number in the sequence, we need to observe the given numbers and look for any consistent rule or pattern. Let's examine the given sequence:

6, 1, 8, 4, 2, 7

Upon closer inspection, we can identify a pattern where each number seems to be related to its position in the sequence. Specifically, the first number (6) corresponds to the 1st position, the second number (1) corresponds to the 2nd position, the third number (8) corresponds to the 3rd position, and so on.

By applying this pattern, we can determine that the next number should correspond to the 6th position. Since the sequence follows a repeating pattern with a length of 6, we can cycle back to the beginning. Therefore, the number in the 6th position is 3.

Hence, the next number in the sequence is 3.

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Interpret the following exponential function: y = 6 (1. 07) Superscript x What is the growth/decay factor? What is the y-intercept? a. Decay factor is 6; y-intercept is 1. 07 b. Decay factor is 1. 07; y-intercept is 6 c. Growth factor is 6; y-intercept is 1. 07 d. Growth factor is 1. 07; y-intercept is 6.

Answers

The growth/decay factor of the given exponential function y = 6(1.07)^x is 1.07, and the y-intercept is 6.

In the exponential function y = 6(1.07)^x, the base of the exponential term is 1.07. Since the base is greater than 1, it represents a growth factor. This means that as x increases, the value of y will grow exponentially.

The coefficient 6 represents the initial value or y-intercept of the function. When x is equal to 0, the exponential term becomes 1, and multiplying it by 6 gives us the y-intercept of 6. This means that when x is 0, the value of y is 6.

Therefore, the correct answer is:

d. Growth factor is 1.07; y-intercept is 6.

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1. two rectangles have a scale factor 4/3 If the perimeter of the smaller rectangle is 120 what is the perimeter of the larger rectangle 2.two rectangles have a scale factor 4/3 If the perimeter of the smaller rectangle is 45 what is the perimeter of the larger rectangle


3.two hexagons have an area ratio of 36:49 Find the ratio of their perimeters.

Answers

The perimeter of the larger rectangle is 160. The ratio of the perimeters of the two hexagons is 36/7.

To find the perimeter of the larger rectangle, we can use the concept that the perimeter scales with the scale factor.

If the scale factor of 4/3 is applied to the smaller rectangle, it means that the corresponding sides of the larger rectangle are 4/3 times longer than the sides of the smaller rectangle. Since the perimeter is the sum of all the sides, we can multiply the perimeter of the smaller rectangle by the scale factor to find the perimeter of the larger rectangle.

Given that the perimeter of the smaller rectangle is 120, we can calculate the perimeter of the larger rectangle as follows:

Perimeter of the larger rectangle = Scale factor * Perimeter of the smaller rectangle

Perimeter of the larger rectangle = (4/3) * 120

Perimeter of the larger rectangle = 160

Therefore, the perimeter of the larger rectangle is 160.

Using the same logic as in the previous question, we can find the perimeter of the larger rectangle when the perimeter of the smaller rectangle is 45.

Perimeter of the larger rectangle = Scale factor * Perimeter of the smaller rectangle

Perimeter of the larger rectangle = (4/3) * 45

Perimeter of the larger rectangle = 60

Therefore, the perimeter of the larger rectangle is 60.

The ratio of the areas of the two hexagons is given as 36:49. Since the area of a hexagon is proportional to the square of its side length, we can take the square root of the area ratio to find the ratio of their side lengths.

√(Area ratio) = √(36/49) = 6/7

The ratio of their side lengths is 6/7. Since the perimeter of a regular hexagon is equal to six times the length of its side, we can multiply the ratio of the side lengths by 6 to find the ratio of their perimeters.

Ratio of perimeters = 6 * (6/7) = 36/7

Therefore, the ratio of the perimeters of the two hexagons is 36/7.

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A quarterback throws an incomplete pass. The height of the football at time t is modeled by the equation h(t) = –16t2 40t 7. Rounded to the nearest tenth, the solutions to the equation when h(t) = 0 feet are –0. 2 s and 2. 7 s. Which solution can be eliminated and why? The solution –0. 2 s can be eliminated because time cannot be a negative value. The solution –0. 2 s can be eliminated because the pass was not thrown backward. The solution 2. 7 s can be eliminated because the pass was thrown backward. The solution 2. 7 s can be eliminated because a ball cannot be in the air for that long due to gravity.

Answers

The solution that can be eliminated is -0.2 s. The reason for eliminating this solution cannot be a negative value in this context. The height of football at t is modeled by quadratic equation h(t) = -16t^2 + 40t + 7,

When solving the equation h(t) = 0 to find the times when the height of the football is zero, we obtain two solutions: -0.2 s and 2.7 s (rounded to the nearest tenth). We need to determine which solution is valid and which one should be eliminated.

In this case, the solution -0.2 s can be eliminated because time cannot be negative. Time represents the duration after the ball is thrown, and it cannot go back in time before the throw occurred. Therefore, -0.2 s does not make sense in the context of this problem.

On the other hand, 2.7 s is a valid solution as it represents the time when the football reaches a height of zero during its trajectory. This solution indicates that after approximately 2.7 seconds, the football has landed or reached its lowest point in its flight path.Thus, the solution -0.2 s can be eliminated because time cannot be negative in this situation.

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What are the consequences of Monkeyman's actions?


Group of answer choices



a)Peaches got cut in a fight.



b)Peaches and Monkeyman aren't friends anymore.



c)The Tigros want to hurt Monkeyman.



(Two Lady Tigros got in trouble

Answers

Monkeyman is one of the two protagonists in the short story "The Day They Burned the Books" written by Jean Rhys. This story is about the societal norms that exist in the Caribbean in the 1900s.

Monkeyman is a young boy from the West Indies who is fascinated by the books in the library but feels that he is too insignificant to touch them. Monkeyman's actions have consequences.The consequences of Monkeyman's actions are that The Tigros want to hurt him. The Tigros are two girls, who are friends of Peaches, the other protagonist in the story.

Monkeyman and Peaches have a close friendship, but because of Monkeyman's actions, The Tigros are angry with him. Monkeyman finds out that The Tigros are angry with him when he overhears them talking. He tries to apologize to them but they are not interested in listening to him.The situation becomes worse when The Tigros start looking for Monkeyman. They are angry and want to hurt him. Monkeyman has to hide from them in the library, and he is terrified. The situation is tense, and it is not clear what will happen. This is the consequence of Monkeyman's actions.

The story shows how the societal norms of the Caribbean in the 1900s affect the lives of the people who live there. Monkeyman's actions show that he is not willing to accept these norms, but he has to deal with the consequences of his actions.

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Calculator A What is m/CDJ? (4x) (3x - 8) M Enter your answer in the box. ​

Answers

The expression m/CDJ is equal to (4x)(3x - 8). To simplify the expression m/CDJ, we need to substitute the value of CDJ with its equivalent expression. Based on the given information, CDJ is equal to (3x - 8).

To further simplify the expression, we multiply the numerator m by the factor in the denominator, which is (4x). This gives us (4x)m/(3x - 8).  Therefore, m/CDJ can be rewritten as m/(3x - 8). So, the simplified expression for m/CDJ is (4x)(3x - 8). The result is a product of the two factors, 4x and (3x - 8), and it represents the value of m/CDJ.

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Given: JM ⊥ML, JK ⊥KL,JK ≈= ML


Prove: angle JML≈= angle LKJ

Answers

In an isosceles triangle, the angles opposite the equal sides are congruent, thus, angle JML≈= angle LKJ

How to prove the statement

Since JM is perpendicular to ML whereas JK is perpendicular to KL, the congruence of triangles JMK and LMK can be deduced using the Side-Angle-Side (SAS) congruence principle.

This suggests that angle JKM and angle LKM are equivalent in measure. In other words, JK is almost the same length as ML, suggesting that the LKJ triangle is nearly an isosceles triangle.

If a triangle has two equal sides, then the angles facing those sides are also identical. Consequently, angle KJL is nearly identical to angle LJK. Given the nature of transitivity.

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A train leaves sheffield at 1. 48pm and arrives in Londan at 4. 18pm The distance is 170 miles. What was the trains average speed

Answers

the train's average speed was approximately 68 miles per hour.

To calculate the average speed of the train, we need to divide the distance traveled by the time taken.

Given:

Distance: 170 miles

Time taken: 4:18 PM - 1:48 PM = 2 hours and 30 minutes

To calculate the average speed, we first need to convert the time taken to hours. Since there are 60 minutes in an hour, we have:

Time taken = 2 hours + 30 minutes / 60 = 2.5 hours

Now we can calculate the average speed:

Average speed = Distance / Time taken

Average speed = 170 miles / 2.5 hours

Average speed = 68 miles per hour (rounded to the nearest whole number)

Therefore, the train's average speed was approximately 68 miles per hour.

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Chris found the equation of a trend line. The equation is shown below. 3 10. Yx = + Ifx is 5, what is the predicted value of y?

Answers

The predicted value of y is 53 for the given equation of the trend line.

Given equation of trend line is Yx = 3 + 10x.

We are supposed to determine the predicted value of y if x is 5.

To find the value of y, we have to substitute the value of x in the given equation:

Yx = 3 + 10x

When x = 5,

Then Yx = 3 + 10(5)

           = 3 + 50 = 53

So, the predicted value of y is 53. Therefore, 53 is the correct answer.

Trend lines are drawn at an angle and are used to determine a trend and help making trading decision.

A trend line should be connected by at least three highs or lows to make it valid.

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Which pair of fractions is equivalent to 5/6 and 3/5

Answers

[tex]To find out which pair of fractions is equivalent to 5/6 and 3/5, we need to convert them to fractions with a common denominator.[/tex]

The common denominator of 6 and 5 is 30. Thus, we need to convert both fractions into 30th fractions. 5/6=25/30, and 3/5=18/30. Therefore, the pair of fractions that is equivalent to 5/6 and 3/5 is 25/30 and 18/30.Explanation:Given fractions are 5/6 and 3/5To make a pair of equivalent fractions, we need to find out a common denominator.Now, let's try to find out the LCM of 6 and 5.LCM of 6 and 5 is 30Thus,We need to convert fractions with a common denominator of 30.5/6 = 25/303/5 = 18/30Therefore, the pair of equivalent fractions is 25/30 and 18/30.

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At the Stanford Used Car Dealership, a salesperson is paid a commission of 5% of the sale price for every car he or she sells. If a salesperson sells a car for $13,500, how much would he or she be paid as a commission?

Answers

Cost of commission he or she be paid is, $675

We have,

At the Stanford Used Car Dealership, a salesperson is paid a commission of 5% of the sale price for every car he or she sells.

Here, Cost of a car = $13,500

Hence, Cost of commission he or she be paid is,

5% of $13,500

5/100 x $13,500

5 x $135

$675

Therefore, Cost of commission he or she be paid is, $675

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Rosa and Gina launched their rockets at the same time. Gina's rocket flew x seconds. Rosa's rocket flew 2.5 seconds


longer than 1.5 times the number of seconds Gina's rocket flew. Which expression describes how long Rosa's rocket


flew?

Answers

To describe how long Rosa's rocket flew, we can use the given information that Rosa's rocket flew 2.5 seconds longer than 1.5 times the number of seconds Gina's rocket flew.

Let's denote the number of seconds Gina's rocket flew as x. According to the information given, Rosa's rocket flew 1.5 times the number of seconds Gina's rocket flew, which is 1.5x. Additionally, Rosa's rocket flew 2.5 seconds longer than that.

Therefore, the expression that describes how long Rosa's rocket flew is:

1.5x + 2.5

So Rosa's rocket flew for 1.5x + 2.5 seconds.

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If PQ has endpoints(5,-8)and (-5,8) what is the slope of PQ?

Answers

The slope of line PQ, which has endpoints (5, -8) and (-5, 8), can be determined by finding the ratio of the change in y-coordinates to the change in x-coordinates.

The slope represents the rate at which the line rises or falls as we move from one endpoint to the other. The slope formula is given by:

Slope = (change in y-coordinates) / (change in x-coordinates)

To calculate the slope of PQ, we subtract the y-coordinate of one endpoint from the y-coordinate of the other endpoint and divide it by the difference of the corresponding x-coordinates. In this case, the calculation would be as follows:

Slope = (8 - (-8)) / (-5 - 5) = 16 / -10 = -8 / 5

Therefore, the slope of line PQ is -8/5. This means that as we move from the point (5, -8) to (-5, 8), the line rises 8 units for every 5 units it moves to the left.

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2.1.5. Mr Mathebula says that more than 60% of the learners achieved above 25 out of 50. Verify whether his statement is correct. Clearly show your calculations. 2.2. (4)​

Answers

Mr Mathebula says that more than 60% of the learners achieved above 25 out of 50.  To verify Mr. Mathebula's statement, we need to calculate the percentage of learners who achieved above 25 out of 50. In this case, 60.1% is not greater than 60%, so Mr. Mathebula's statement would be incorrect.

To verify Mr. Mathebula's statement, we need to calculate the percentage of learners who achieved above 25 out of 50. Let's assume there are a total of 'n' learners in the class.

First, we need to determine the number of learners who scored above 25. Let's denote this as 'x'. Since the statement mentions that more than 60% of the learners achieved above 25, we can assume 'x' to be any number greater than 0.6n.

Now, let's calculate the percentage of learners who achieved above 25 out of 50:

Percentage = (x / n) * 100

Since we want to verify whether Mr. Mathebula's statement is correct, we need to determine if the calculated percentage is greater than 60%.

If we assume that 'x' is the lowest possible value of 0.6n + 1 (to satisfy the "more than 60%" condition), the percentage becomes:

Percentage = ((0.6n + 1) / n) * 100

Simplifying this expression:

Percentage = (0.6 + 1/n) * 100

Now, let's substitute some values for 'n' to see if the percentage is greater than 60%:

If we consider 'n' to be 100, the percentage becomes:

Percentage = (0.6 + 1/100) * 100 = 60.6%

Since 60.6% is greater than 60%, Mr. Mathebula's statement holds true for this scenario.

However, if we consider 'n' to be 1000, the percentage becomes:

Percentage = (0.6 + 1/1000) * 100 = 60.1%

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How do you advise school leavers on stress management techniques to deal with the psychologist impact of unemployment

Answers

To advise school leavers on stress management techniques to deal with the psychological impact of unemployment, it is essential to encourage self-care practices, maintain a positive mindset, seek support from others, develop new skills, and explore alternative opportunities.

1. Self-care practices: Emphasize the importance of self-care activities such as exercise, proper sleep, healthy eating, and engaging in hobbies or activities that bring joy and relaxation. These practices help reduce stress and promote overall well-being.

2. Positive mindset: Encourage school leavers to maintain a positive outlook by focusing on their strengths, setting realistic goals, and maintaining a sense of optimism. Remind them that unemployment is a temporary phase and that opportunities will arise in the future.

3. Seek support: Encourage school leavers to reach out to family, friends, or mentors for emotional support and guidance. Sharing their concerns and feelings with others can help alleviate stress and provide valuable perspectives.

4. Develop new skills: Suggest utilizing the free time to learn new skills or enhance existing ones. This could involve taking online courses, volunteering, or participating in community projects. Skill development increases confidence and expands future job prospects.

5. Explore alternative opportunities: Encourage school leavers to explore alternative paths such as entrepreneurship, freelancing, internships, or part-time work. Encouraging them to think creatively and consider different options can help them find fulfilling opportunities.

By adopting these stress management techniques, school leavers can proactively cope with the psychological impact of unemployment, maintain a positive mindset, and continue developing themselves for future opportunities.

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how is duplicating an angle different to a line segment

Answers

Duplicating an angle involves constructing an angle that has the same measure as the original angle. It can be done using a compass and a straightedge, following specific constructions. On the other hand, a line segment duplication refers to creating an identical copy of a given line segment, typically by using a ruler or other measuring tools.

Duplicating an angle is based on the concept of angle congruence, where two angles are considered congruent if they have the same measure. To duplicate an angle, one can use a compass to transfer the angle's measure onto another location or construct a new angle with the same measure using geometric constructions.

In contrast, duplicating a line segment refers to creating an exact copy of a given line segment. This can be achieved by using a ruler or other measuring tools to measure the length of the segment and then transferring that length to a different location. The resulting line segment will have the same length as the original.

In summary, duplicating an angle involves reproducing an angle with the same measure, while duplicating a line segment entails creating an identical copy of a given line segment in terms of its length. The methods and tools used for these operations differ, as duplicating an angle relies on geometric constructions, while duplicating a line segment involves measurement and replication techniques.


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Express the area of a square with side length 3xy2 as a monomial

Answers

The area of a square with side length 3xy^2 can be expressed as a monomial, which is 9x^2y^4.

The area of a square is calculated by multiplying the length of its side by itself. Given a side length of 3xy^2, we can express the area as a monomial by simplifying the expression. First, we square the side length: (3xy^2)^2. Applying the exponent to each term within the parentheses, we get 9x^2y^4. This monomial represents the area of the square with a side length of 3xy^2. It indicates that the area is the product of the coefficient, 9, and the variables raised to their respective exponents, x^2 and y^4. Therefore, the monomial expression for the area of the square is 9x^2y^4.

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Two communications companies offer calling plans. With Company​ X, it costs 35¢ to connect and then 5¢ for each minute. With Company​ Y, it costs 20¢ to connect and then 4¢ for each minute. Write and simplify an expression that represents how much more Company X​ charges, in​ cents, for n minutes.

Answers

To represent how much more Company X charges than Company Y for n minutes, we can subtract the total cost of Company Y from the total cost of Company X. The expression that represents this is (35 + 5n) - (20 + 4n) cents. Simplifying this expression yields 15 + n cents.

To find how much more Company X charges than Company Y for n minutes, we need to calculate the difference in their total costs. For Company X, it costs 35 cents to connect and an additional 5 cents for each minute, resulting in a total cost of (35 + 5n) cents for n minutes. For Company Y, it costs 20 cents to connect and an additional 4 cents for each minute, giving a total cost of (20 + 4n) cents for n minutes.

To find the difference, we subtract the total cost of Company Y from the total cost of Company X: (35 + 5n) - (20 + 4n) cents. Simplifying this expression, we combine like terms and get 15 + n cents. Therefore, the expression (15 + n) represents how much more Company X charges than Company Y for n minutes.

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A quarterback throws an incomplete pass. The height of the football at time t is modeled by the equation h(t) = –16t2 40t 7. Rounded to the nearest tenth, the solutions to the equation when h(t) = 0 feet are –0. 2 s and 2. 7 s. Which solution can be eliminated and why? The solution –0. 2 s can be eliminated because time cannot be a negative value. The solution –0. 2 s can be eliminated because the pass was not thrown backward. The solution 2. 7 s can be eliminated because the pass was thrown backward. The solution 2. 7 s can be eliminated because a ball cannot be in the air for that long due to gravity.

Answers

Based on the fact that time values cannot be negative, the value which can be eliminated is -0.2s. Hence, the correct option is A.

The time values given are -0.2s and 2.7s. Time values cannot be negative. Hence, 2.7s is a more reasonable solution for the value of Time in this scenario.

Also, passes Can be thrown in any direction around the field. Hence, passes could be thrown forward or backward as the case may be.

Therefore, the solution which could be eliminated is -0.2 seconds.

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