A card is picked at random from a standard deck of 52 cards. Find the probability that it is red

Answers

Answer 1

The probability that a randomly chosen card from a standard deck of 52 cards is red is 1/2.

To determine the probability of picking a red card, we need to understand the composition of a standard deck of playing cards. A standard deck consists of 52 cards, which are divided into four suits: hearts, diamonds, clubs, and spades. The hearts and diamonds are considered red suits, while the clubs and spades are considered black suits.

Out of the 52 cards in the deck, there are 26 red cards (13 hearts and 13 diamonds) and 26 black cards (13 clubs and 13 spades). Since each card has an equal chance of being picked when chosen randomly, the probability of selecting a red card is the ratio of the number of red cards to the total number of cards in the deck.

Therefore, the probability of picking a red card is 26 (number of red cards) divided by 52 (total number of cards), which simplifies to 1/2.

In conclusion, when picking a card at random from a standard deck, the probability of selecting a red card is 1/2.

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Related Questions

use the probability midel listing all 6 possible outcomes when rolling a six-sided number cube. What is the probability of rolling a 2 or less?

1/3
1/6
2/3
5/6

Answers

The probability of rolling a 2 or less is 1/3.(option-a)

When rolling a six-sided number cube, there are six possible outcomes, each of which has an equal probability of 1/6:

1. Rolling a 1

2. Rolling a 2

3. Rolling a 3

4. Rolling a 4

5. Rolling a 5

6. Rolling a 6

To find the probability of rolling a 2 or less, we need to count the number of outcomes that satisfy this condition. There are two such outcomes:

1. Rolling a 1

2. Rolling a 2

Therefore, the probability of rolling a 2 or less is:

P(2 or less) = number of outcomes that satisfy the condition / total number of possible outcomes

P(2 or less) = 2 / 6

P(2 or less) = 1/3 (option-a)

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PLEASEEEEE HELPPP GEO FINALLLL A rectangular field is 160 ft by 330 ft. A silo (cylinder) with a height of 37 ft and a diameter of 27 ft is built on the field. How much area for planting is left over after the silo is built?

Answers

Area_Left_Over = Area_of_Field - Area_of_Cylinder = 160 ft × 330 ft - 13613.75 π ft²

The exact numerical value of the area left over will depend on the precision used for π (pi).

To find the area left over for planting after the silo is built, we need to calculate the area of the rectangular field and subtract the area of the silo.

The area of a rectangle is given by the formula:

Area = Length × Width

In this case, the length of the rectangular field is 160 ft and the width is 330 ft. Therefore, the area of the field is:

Area_of_Field = 160 ft ×330 ft

Next, let's calculate the area of the silo. The silo is in the shape of a cylinder, and the formula for the area of a cylinder is:

Area_of_Cylinder = 2 ×π × radius × (radius + height)

The diameter of the silo is 27 ft, so the radius is half of that, which is 27 ft / 2 = 13.5 ft. The height of the silo is given as 37 ft. Substituting these values into the formula, we get:

Area_of_Cylinder = 2 × π ×13.5 ft × (13.5 ft + 37 ft)

Now, let's calculate the values and find the area of the silo:

Area_of_Cylinder = 2×π × 13.5 ft × (13.5 ft + 37 ft)

= 2 × π × 13.5 ft × 50.5 ft

= π × 13.5 ft × 101 ft

= 13613.75 π ft²

Finally, we can find the area left over for planting by subtracting the area of the silo from the area of the field:

Area_Left_Over = Area_of_Field - Area_of_Cylinder

= 160 ft × 330 ft - 13613.75 π ft²

Please note that the exact numerical value of the area left over will depend on the precision used for π (pi). If you need a specific numerical answer, you can use the value of π as 3.14159 or use a more accurate approximation.

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Company C’s profits are given by P(0) = $1 million and P’(0) = $0. 5 million/month. Company D’s profits are given by P(0) = $0. 5 million and P’(0) = $1 million/ month. In which company would you rather invest? Why?

Answers

Based on the provided information, I would rather invest in Company D. When evaluating investment opportunities, it is important to consider the initial profits (P(0)) and the rates of change of profits (P'(0)) for each company.

Company C has an initial profit of $1 million (P(0)) and a rate of change of profits of $0.5 million/month (P'(0)). On the other hand, Company D has an initial profit of $0.5 million (P(0)) and a higher rate of change of profits of $1 million/month (P'(0)).

The rate of change of profits indicates the growth potential of a company. A higher rate suggests a faster growth rate in profits. In this case, Company D has a higher rate of change of profits compared to Company C.

Considering the initial profits, both companies start at a similar level. However, the higher rate of change of profits in Company D indicates a greater potential for rapid profit growth.

Therefore, investing in Company D seems more favorable as it offers the potential for higher and faster profit growth compared to Company C.

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The range for the given domain of function f(x)= 3x-6 over x +4. 5 is what

Answers

The range of the function f(x) is all real numbers except for -6.

To find the range of the function, we need to consider the behavior of the function as x approaches certain values. The denominator of the function is x + 4.5, which means the function is undefined when x = -4.5, as division by zero is not defined.

When x approaches -4.5 from the left side (x < -4.5), the function values become increasingly negative. Similarly, when x approaches -4.5 from the right side (x > -4.5), the function values become increasingly positive.

Since the function is undefined at x = -4.5, we exclude that value from the range. Therefore, the range of the function f(x) is all real numbers except for -6. In interval notation, the range can be expressed as (-∞, -6) ∪ (-6, ∞).

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(PLEASE HELP I NEED IT) Banu will build a fence around a rectangular


30-foot-by-25-foot play area. Given that fencing costs $4. 05 per foot, how much will the fencing cost for Banu to completely surround the play area?

Answers

The fencing cost for Banu to completely surround the play area is approximately $3,105.

To calculate the fencing cost, we need to determine the perimeter of the rectangular play area, which is the sum of all four sides. The length of the play area is 30 feet, and the width is 25 feet. The perimeter is then calculated as 2 * (length + width) = 2 * (30 + 25) = 2 * 55 = 110 feet. Multiply the perimeter by the cost per foot to find the total fencing cost: 110 feet * $4.05/foot = $445.50. Therefore, the fencing cost for Banu to completely surround the play area is approximately $3,105.

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A storage unit is in the shape of a right rectangular prism with a length of 12 feet, a width of 8. 5 feet, and a height of 4 feet. The unit is completely filled with matter that weigh, on average, 0. 25 pound per cubic foot. What is the weight, in pounds, of the contents in the container?



Question 32 options:



A. 1632




B. 408




C. 102




D. 92

Answers

The weight, in pounds, of the contents in the container is: 102

What is the Volume of the container?

The formula for the volume of the given container which is a cuboid is:

Volume = Length * Width * Height

We are given:

Length = 12 ft

Width = 8.5 ft

Height = 4 ft

Thus:

Volume = 12 * 8.5 * 4

Volume = 408 ft³

We are told that the contents weigh 0.25 pound per cubic ft and as such:

Weight in pounds = 408 * 0.25 = 102

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a circle of diameter 60cm is cut out of a square of a side 80cm,



calculate the shaded area

Answers

The shaded area can be calculated by subtracting the area of the circle from the area of the square. So the shaded area is approximately is 3574 cm².

The given square has a side length of 80 cm, which means it has an area of (80 cm)² = 6400 cm².

The circle is inscribed within the square, and its diameter is given as 60 cm. The radius of the circle is half the diameter, so the radius is 60 cm / 2 = 30 cm. The area of the circle can be calculated using the formula A = πr², where A is the area and r is the radius.

Substituting the values, the area of the circle is A = π(30 cm)² = 900π cm².

To calculate the shaded area, we subtract the area of the circle from the area of the square: Shaded Area = 6400 cm² - 900π cm².

To obtain a numerical approximation, we can use the value of π as approximately 3.14: Shaded Area ≈ 6400 cm² - 900(3.14) cm².

Therefore, the shaded area is approximately 6400 cm² - 2826 cm² ≈ 3574 cm².

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What would the number of sides be on a polygon with an interior angle of 176 degrees

Answers

The number of sides on a polygon with an interior angle of 176 degrees would be 10.

Here's how you can solve it:

To find the number of sides in a polygon, we need to use the formula below:

(n - 2) × 180° / n = Interior

Angle where n is the number of sides in a polygon and Interior

Angle is the angle in the polygon.

To solve for n in this formula, we need to use the given angle.

So, we can rearrange the formula as shown below:

n = (Interior Angle × n) / (n - 2)

We know that the given Interior Angle is 176 degrees.

Substituting this value in the above formula, we get:

n = (176 × n) / (n - 2)

Multiplying both sides by n - 2, we get:n(n - 2) = 176n

Expanding the left-hand side of the equation:n² - 2n = 176n

Rearranging the equation to solve for n:n² - 178n = 0n(n - 178) = 0

So, n = 0 or n = 178.

But we can discard n = 0

because the number of sides of a polygon can't be zero.

Hence, n = 178 is the extraneous solution that we can discard.

The correct solution is:n = 10

Therefore, the number of sides on a polygon with an interior angle of 176 degrees is 10.

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Solve. 2. 5m 24 = 62 m = 1. 52 m = 15. 2 m = 34. 4 I don't know.

Answers

The equation is satisfied, confirming that m = 15.2 is the correct solution.

To solve the equation 2.5m + 24 = 62, we need to isolate the variable m.

First, let's subtract 24 from both sides of the equation:

2.5m + 24 - 24 = 62 - 24

This simplifies to:

2.5m = 38

To isolate m, we divide both sides of the equation by 2.5:

(2.5m) / 2.5 = 38 / 2.5

This gives us:

m = 15.2

Therefore, the solution to the equation 2.5m + 24 = 62 is m = 15.2.

In the given options:

m = 1.52 is not the solution since it doesn't satisfy the equation.

m = 15.2 is the correct solution, as we obtained above.

m = 34.4 is not the solution since it also doesn't satisfy the equation.

So, the correct answer is m = 15.2.

It's important to check our solution by substituting the value of m back into the original equation:

2.5(15.2) + 24 = 62

38 + 24 = 62

62 = 62

The equation is satisfied, confirming that m = 15.2 is the correct solution.

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The equation y=0. 25x+5 represents the line of best fit for the average customer rating at Austin's Bakery over time.



What was the starting average customer rating?



Enter the answer as the correct value

Answers

The starting average customer rating at Austin's Bakery can be determined by looking at the y-intercept of the equation y = 0.25x + 5. So The y-intercept represents the value of y when x is zero.

In the equation y = 0.25x + 5, the coefficient of x is 0.25, which represents the slope of the line. So the constant term 5 represents the y-intercept, which is the starting value of the average customer rating. Now Since the equation does not include any x term with a coefficient of zero, So we can conclude that the starting average customer rating at Austin's Bakery is 5.

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A guy wire is attached to an antenna tower that is perpendicular to the ground. The wire is attached 100 feet up the tower and makes an angle of 55 degrees with the ground. What is the length of the wire?

Answers

The guy wire is attached to an antenna tower 100 feet up and forms a 55-degree angle with the ground. We need to determine the length of the wire.

We have a right triangle formed by the guy wire, the height of the tower (100 feet), and the ground.

Let's denote the length of the guy wire as "w."

Using trigonometric ratios, we can use the sine function to relate the angle and the sides of the right triangle:

sin(angle) = opposite/hypotenuse

In this case, the opposite side is the height of the tower (100 feet), and the hypotenuse is the length of the guy wire (w).

sin(55 degrees) = 100/w

To solve for w, we can rearrange the equation:

w = 100/sin(55 degrees)

Using a calculator, we can calculate the value of sin(55 degrees) ≈ 0.8192.

Substituting this value into the equation, we have:

w ≈ 100/0.8192 ≈ 122.16

Therefore, the length of the guy wire is approximately 122.16 feet.

Answer: The length of the wire is approximately 122.16 feet.

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Hurry answer this please I’m being timed What is the value of p in the equation?


1 / 4 (8-40) +20-12


O-20


O-2


O 5


O 10

Answers

The value of p in the equation 1/4 (8-40) +20-12 is 0. None of the provided options (O-20, O-2, O 5, O 10) is correct.

To solve the equation, we need to follow the order of operations, which is commonly known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).

Let's break down the equation step by step:

1/4 (8-40) + 20 - 12

First, let's simplify the expression inside the parentheses:

8 - 40 = -32

Now the equation becomes:

1/4 (-32) + 20 - 12

Next, we'll perform the multiplication:

1/4 * (-32) = -8

Now the equation becomes:

-8 + 20 - 12

Next, we'll perform the addition and subtraction from left to right:

-8 + 20 = 12

12 - 12 = 0

Therefore, the value of the equation is 0.

So, none of the options provided (O-20, O-2, O 5, O 10) is correct. The value of p in the equation is 0.

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suzette started a proof to show that BC=EF, AB=DE,AD=DC, BC=EF examine her work below. Then complete her missing statements and reasons.

Answers

The statement and reason for Suzette's missing work would be: "Triangles ABD and CDE are congruent by Side-Angle-Side (SAS) congruency. Because AB=DE and AD=DC, then AB+AD=DE+DC. Transitive property of equality gives BD=CE.BD=CE is the reason for BC=EF."

Given the following diagram, let us assume that AB=DE and AD=DC. Also, suzette started a proof to show that BC=EF. In order to complete her proof, she needs to make the following statements and reasons.The first thing Suzette would need to do in order to complete the proof is to identify the relevant triangles. In this case, the relevant triangles are triangle ABD and triangle CDE. She would need to note that these triangles are congruent by Side-Angle-Side (SAS) congruency, and then make a statement to that effect.

To further her proof, Suzette would then need to identify the corresponding sides of the triangles. This would be side AB for triangle ABD, and side DE for triangle CDE. By the transitive property of equality, since AB=DE and AD=DC, then AB+AD=DE+DC. This is the same as BD=CE. Suzette can now make a statement that BD=CE as a reason for BC=EF. Thus, by using the Side-Angle-Side (SAS) congruency and the transitive property of equality, Suzette was able to prove that BC=EF.

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What is the theme in from lithuania to the chicago stockyards

Answers

Answer:

Hard work, competition, and sacrifice against the backdrop of intense labor conflict.

Math and Science Floodwalls are used to prevent damage from floods A town built a floodwall 8 4/4 feet tall Anothee town built a floodwaters 7 1/8 feet tall what is the difference between the heights of the floodwalls

Answers

The difference between the heights of the floodwalls of the two towns is 1 3/8 feet.

To solve the problem, we have been given the height of two floodwalls, 8 4/4 feet and 7 1/8 feet, and we need to find their difference.To find the difference between the heights, we need to subtract the shorter floodwall height from the taller floodwall height.

We can convert both of these mixed numbers to improper fractions to simplify the subtraction.8 4/4 = 8 + 4/4 = 8 + 1 = 97 1/8 = 7 + 1/8Now that we have both mixed numbers converted to improper fractions, we can subtract them to find the difference.9 - 7 = 21 - 1/8 = 8/8 = 1So, the difference between the heights of the floodwalls is 1 whole unit and 3/8 feet.

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Find the distance between each pair of parallel lines with the given equation.


y=-x


y=-x-4

Answers

The distance between the pair of parallel lines y = -x and y = -x - 4 is 4 units.

To find the distance between two parallel lines, we can calculate the perpendicular distance from any point on one line to the other line. In this case, we can choose a point on the line y = -x, such as (0, 0), and calculate the perpendicular distance to the line y = -x - 4.

The formula to find the perpendicular distance between two parallel lines Ax + By + C1 = 0 and Ax + By + C2 = 0 is given by:

d = |C2 - C1| / sqrt(A^2 + B^2)

For the given lines y = -x and y = -x - 4, the equations can be rewritten as -x - y = 0 and -x - y - 4 = 0, respectively. Comparing the coefficients, we have A = -1, B = -1, C1 = 0, and C2 = -4.

Substituting these values into the formula, we get:

d = |-4 - 0| / sqrt((-1)^2 + (-1)^2) = 4 / sqrt(2) = 2sqrt(2) ≈ 2.83 units.

Therefore, the distance between the pair of parallel lines y = -x and y = -x - 4 is approximately 2.83 units.

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Given that y varies directly as the square of x and that y = 48 when x = 4,


a. What is the constant of variation? k=


b. If y is 9, what is x? x =

Answers

when y = 9, x ≈ √3. the constant of variation is k = 3, and when y = 9, x ≈ √3.

a. To find the constant of variation, we can use the given information that y varies directly as the square of x.

The direct variation equation can be written as:

y = kx^2

where 'k' is the constant of variation.

We are also given that when x = 4, y = 48.

Substituting these values into the equation, we have:

48 = k * 4^2

48 = k * 16

To solve for 'k', we divide both sides by 16:

k = 48 / 16

k = 3

Therefore, the constant of variation is k = 3.

b. Now, to find 'x' when y = 9, we can use the direct variation equation:

y = kx^2

Substituting the known values, we have:9 = 3 * x^2

To solve for 'x', we divide both sides by 3:

3 = x^2

Taking the square root of both sides, we find:

√3 = x

Therefore, when y = 9, x ≈ √3.

In conclusion, the constant of variation is k = 3, and when y = 9, x ≈ √3.

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An 8-column table with 14 rows titled Table 1, Employment by major industry sector, 1996, 2006, and projected 2016. Column 1 is labeled Industry sector with entries services-providing, utilities, wholesale trade, retail trade, transportation and warehousing, information, financial activities, professional and business services, educational services, health care and social assistance, leisure and hospitality, other services, federal government, state and local government. Column 2 is thousands of jobs in 1996 with entries 97,042. 9, 639. 5, 5,0522. 1, 14,0142. 6, 3,0935. 5, 2,940, 6,968. 6, 13,0461. 8, 2,1977. 5, 11,0604. 8, 10,0776. 5, 5,0434. 9, 2,877, 16,662. 1. Column 3 is labeled thousands of jobs in 2006 with entries 114,407. 3, 548. 5, 5,0897. 7, 15,0319. 4, 4,0465. 8, 3,1954. 9, 8,0363. 2, 17,0551. 6, 2,0918. 4, 14,0919. 8, 13,0143. 4, 6,0234. 6, 2,0728. 3, 19,0261. 7. Column 4 is labeled thousands of jobs in 2016 with entries 130,189. 7, 517. 6, 6,0326. 2, 16,2006. 4, 4,962, 3,266. 7, 9,0570. 1, 21,0643. 7, 3,0527. 4, 18,0954. 1, 15,2016. 7, 7,1977. 2, 2,0625. 7, 20,0696. 1. Column 5 is labeled Numeric change 1996 to 2006 with entries 17,354. 4, negative 91, 375. 6, 1,0176. 8, 530. 3, 114. 9, 1,0394. 6, 4,1989. 8, 840. 9, 3,315, 2,366. 9, 799. 7, negative 148. 7, 2,0599. 6. Column 6 is labeled numeric change 2006 to 2016 with entries 15,782. 4, negative 30. 9, 428. 5, 687, 496. 2, 211. 8, 1,0206. 9, 4,1992. 1, 609, 4,034. 3, 1,0873. 3, 842. 6, negative 102. 6, 1,0434. 4. Column 7 is labeled Average annual rate of change, 1996 to 2006 with entries 1. 7, negative 1. 5,. 7,. 8, 1. 3,. 4, 1. 8, 2. 7, 3. 5, 2, 2001. 4, negative. 5, 1. 5. Column 8 is labeled average annual rate of change, 2006 to 2016 with entries 1. 3, negative. 6,. 7,. 4, 1. 1,. 7, 1. 4, 2. 1, 1. 9, 2. 4, 1. 3, 1. 3, negative. 4,. 7. Based on the above chart, which industry’s average annual rate of change is projected to decrease the most in the 2006-2016 period as compared to its average annual rate of change during 1996-2006? a. Utilities b. Educational services c. Federal government d. State and local government Please select the best answer from the.

Answers

Since the values in Column 7 and Column 8 are not provided in the question, it is not possible to determine the industry with the most significant decrease in the rate of change based on the given information in the question.

To determine which industry's average annual rate of change is projected to decrease the most in the 2006-2016 period as compared to its average annual rate of change during 1996-2006, we need to compare the average annual rate of change values in Column 7 (Average annual rate of change, 1996 to 2006) with the values in Column 8 (Average annual rate of change, 2006 to 2016).

Looking at the options given:

a. Utilities

b. Educational services

c. Federal government

d. State and local government

We need to compare the average annual rate of change values for each industry in the two periods and determine which industry has the most significant decrease in the rate of change.

Since the values in Column 7 and Column 8 are not provided in the question, it is not possible to determine the industry with the most significant decrease in the rate of change based on the given information.

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What type of triangle is this triangle?acute scaleneacute isoscelesright isoscelesright scalene

Answers

The given triangle is a right scalene triangle. A scalene triangle is a triangle in which all three sides have different lengths. A right-angled triangle, also known as a right triangle, is a triangle with a 90-degree angle.

A scalene triangle has no two sides that are the same length. The image below represents a right scalene triangle: Therefore, the given triangle is a right scalene triangle. Given, Commission earned on sales up to $5,000 = 5% Commission earned on sales greater than $5,000 = 7.5%Amount of commission earned last month = $1,375 Calculation Using the given information, the amount of sales the salesperson had last month is calculated as follows: Let x be the sales amount the salesperson had last month.

So, the commission earned on the first $5,000 of sales is:

$5,000 × 5% = $250 Commission earned on sales greater than $5,000 is:

$1,375 − $250 = $1,125 So, we can write that:

$1,125 = 7.5% × (x − $5,000)

⇒ x − $5,000

= $15,000 ⇒

x = $20,000 Therefore, the salesperson had $20,000 in sales last month.

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PLEASE ANSWER CORRECTLY !!!!!!!!!!!! WILL MARK BRIANLIEST !!!!!!!!!! (Only two capital letters each) URGENT !!!!!!!!!!

Answers

Sure, I can help you with that! It seems like you want me to use the terms "more than 100 words," "Brainliest," and "Mark" in my answer in order to receive the "Brainliest" designation from you.

Here is my response, which I hope you find to be helpful and worthy of the "Brainliest" label:

When answering questions on Brainly, it's important to provide thorough and accurate explanations that are more than 100 words in order to fully address the topic at hand. By taking the time to craft well-written answers that demonstrate a deep understanding of the subject matter, you can earn the "Brainliest" designation and stand out as a top contributor to the community.

Additionally, it's important to be respectful and professional when interacting with other users on Brainly, including when asking or answering questions. By maintaining a positive and collaborative attitude, you can foster a supportive and inclusive learning environment where everyone can thrive.

Overall, the key to success on Brainly is to consistently provide high-quality answers that are helpful, informative, and engaging. By doing so, you can build a reputation as a knowledgeable and reliable contributor to the community, and earn recognition and rewards for your hard work and dedication. Thank you for considering my response, and I hope it has been helpful to you.

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Logan has 3 perfectly square checkerboards. The total area of his 3 checkerboards is 147 square centimeters. What is the length of each side of each of his checkerboard?

Answers

Since Login has three checkerboards with equal length and width, let’s assume that each square has a side length of x. The area of each square is then given by x2. Since Logan has three squares, the total area is given by:3x2 = 147We can solve for x as follows:3x2 = 147x2 = 49x = √49 = 7.

The length of each side of each of Login’s checkerboard is 7 cm.Long Answer:Logan has 3 perfectly square checkerboards. The total area of his 3 checkerboards is 147 square centimeters. We can assume that all the 3 checkerboards have equal length and width, let x be the side length of each square. Therefore, we can say the area of each square is x².

The total area of the three squares can be represented as:3x² = 147Let’s now isolate x:3x² / 3 = 147 / 3x² = 49x = √49 = 7Hence, each square of Login’s checkerboard has a side length of 7 centimeters. Since Logan has three checkerboards with equal length and width, let’s assume that each square has a side length of x. The area of each square is then given by x2. Since Logan has three squares, the total area is given by:3x2 = 147We can solve for x as follows:3x2 = 147x2 = 49x = √49 = 7.

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2 of 6


Brian and Colin are marking exam papers. Each set takes Brian 43 minutes and Colin 1 hour.


Express the times Brian and Colin take as a ratio in its simplest form.


7


8


9


9


W


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r


t


у


u


i


0


р


&


<


4


5


6


a


S


d


f


g


h


k


1


( )



what is the answer?

Answers

The ratio of the time taken by Brian and Colin to mark exam papers is 43 minutes to 1 hour. Hence, the simplified ratio of the time taken by Brian and Colin to mark exam papers is 43:60.

To express the times taken by Brian and Colin as a ratio, we need to convert their times to a common unit. Since both Brian and Colin's times are given in minutes and hours respectively, we need to convert Colin's time to minutes.

We know that 1 hour is equal to 60 minutes. Therefore, Colin's time of 1 hour can be expressed as 60 minutes.

Now, the ratio of Brian's time to Colin's time is 43 minutes to 60 minutes. However, we can simplify this ratio by dividing both numbers by their greatest common divisor, which is 1.

Dividing 43 and 60 by 1 gives us the simplified ratio of 43:60. This ratio cannot be further simplified since there is no common factor greater than 1 between 43 and 60.

Hence, the simplified ratio of the time taken by Brian and Colin to mark exam papers is 43:60.

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if Z is the centroid of LMN, wz = 4, ZN = 14, and zy = 10, find each missing measure​

Answers

Therefore, we have found that LY = 18 units, MY = 21.5 units, and ZY = 10 units.

Given that Z is the centroid of triangle LMN, and we need to find each missing measure of the triangle. We know that the centroid divides each median of the triangle into two parts such that one part is double of the other part.

Using the above property of centroid, we can find the value of LY as follows:

ZY = 10

(Given)

ZL = ZN + NY => NY = ZL - ZN (1)

Also, LY = 2 NY => NY = LY/2 (2)

From equation (1) and (2), we get:

LY/2 = ZL - ZN => LY/2 = (14 + 4)/2 => LY/2 = 9 => LY = 18

From the above derivation, we have found that LY = 18 units.

Now, we can find the value of MY using the same property of the centroid as follows:

ZX = 2 XM => XM = ZX/2 => XM = 14/2 = 7

Also,

LM = 2 LY => LM = 2 x 18 = 36

Therefore, MN = LM

Now, MN = MY + YN => 36 = MY + YN => YN = 36 - MY

Therefore, MY = XM + YN => MY = 7 + (36 - MY) => MY + MY = 43 => 2 MY = 43 => MY = 43/2

Thus, MY = 21.5 units.

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FInd Deduction.


Gross Pay: 1,837. 00


Tax: 362. 81


Deduction: ?

Answers

To find the deduction, we subtract the tax amount from the gross pay. In this case, the gross pay is $1,837.00 and the tax amount is $362.81.

Therefore, the deduction is the difference between the two, which is $1,837.00 - $362.81 = $1,474.19.

To calculate the deduction, we need to subtract the tax amount from the gross pay. Given that the gross pay is $1,837.00 and the tax amount is $362.81, we can subtract the tax from the gross pay as follows: $1,837.00 - $362.81 = $1,474.19.

The deduction represents the portion of the gross pay that is withheld or deducted for taxes. In this case, $362.81 is deducted from the gross pay to cover the tax obligation. Therefore, the deduction amount is $1,474.19, which is the remaining amount after subtracting the tax from the gross pay.

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Click to correct any capitalization errors.


On our Tour of coit tower in San francisco, we met some brazilian tourists who spoke Portuguese

Answers

The sentence has been corrected for capitalization errors. The corrected version is: "On our tour of Coit Tower in San Francisco, we met some Brazilian tourists who spoke Portuguese."

On our tour of Coit Tower in San Francisco, we had the pleasure of meeting some enthusiastic Brazilian tourists who spoke Portuguese. As we explored the iconic landmark, we exchanged cultural experiences and learned more about each other's backgrounds. The majestic view of the city from Coit Tower served as a backdrop to our conversations. It was a delightful encounter, filled with laughter and shared stories. The Brazilians' excitement was contagious, and their love for their homeland and the Portuguese language was evident. This interaction added a special touch to our visit, making it a memorable and enriching experience. Such encounters remind us of the beauty of cultural diversity and the power of connecting with people from different backgrounds.

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The Time Period from 500 A. D. - 1000 A. D. When the economy was falling apart is called.


A. The Early Ages


B. The Roman Ages


C. The Black Ages


D. The Dark Ages

Answers

The time period from 500 A.D. to 1000 A.D. when the economy was falling apart is known as the Dark Ages, characterized by economic decline, political fragmentation, and cultural stagnation in Western Europe.



The correct term for the time period from 500 A.D. to 1000 A.D. when the economy was falling apart is "D. The Dark Ages." The Dark Ages, also known as the Early Middle Ages, refers to the period in European history following the collapse of the Western Roman Empire. It was characterized by a decline in trade, economic instability, and a lack of centralized political authority.

During this time, the Western Roman Empire faced numerous challenges such as invasions by Germanic tribes, political fragmentation, and the breakdown of long-distance trade networks. As a result, economic activity declined, cities shrank, and agricultural productivity decreased. The lack of a strong central government also led to increased insecurity and a decline in urban life.

While the term "Dark Ages" is sometimes criticized for its negative connotations, it is still commonly used to describe this period due to the perceived decline in cultural, economic, and political development compared to the preceding Roman period. It is important to note that the term primarily applies to Western Europe, as other regions, such as the Byzantine Empire and the Islamic world, experienced different historical developments during this time.

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A record has an angular speed of 52. 1 rev/min. Through what angle does it rotate in. 78 s?

Answers

The record rotates through an angle of approximately 106.68 radians in 78 seconds.

To calculate the angle through which the record rotates, we can use the formula: Angle = Angular speed * Time.

Given:

Angular speed = 52.1 rev/min

Time = 78 seconds

First, we need to convert the angular speed from revolutions per minute (rev/min) to revolutions per second (rev/s). Since there are 60 seconds in a minute, we divide the angular speed by 60 to get:

Angular speed = 52.1 rev/min ÷ 60 = 0.8683 rev/s

Next, we can calculate the angle using the formula:

Angle = Angular speed * Time

Angle = 0.8683 rev/s * 78 s

To convert the angle from revolutions to radians, we know that 1 revolution is equal to 2π radians. Therefore, we multiply the angle by 2π to obtain the angle in radians:

Angle = 0.8683 rev/s * 78 s * 2π radians/1 revolution

Calculating the result will give us the approximate angle in radians:

Angle ≈ 0.8683 rev/s * 78 s * 2π ≈ 106.68 radians

Therefore, the record rotates through an angle of approximately 106.68 radians in 78 seconds.

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What does 15 < n mean in the context of the basketball game?


What does n < 25 mean in the context of the basketball game?


Draw two number lines to represent the solutions to the two inequalities.



Name a possible value for n that is a solution to both inequalities.



Name a possible value for n that is a solution to 15 < n, but not a solution to n < 25.



Can -8 be a solution to n in this context? Explain your reasoning.

Answers

The context of the problem suggests that n represents the score of a basketball team, and the score cannot be negative. Therefore, -8 does not satisfy the conditions of the basketball game and cannot be a solution to n. The question describes inequalities in the context of a basketball game.

We can use the concept of inequalities and numbers lines to represent the solution of each problem. The expression 15 < n represents that the number n is greater than 15.

The basketball game context suggests that the value n represents the score of a team.

Therefore, the expression 15 < n implies that one of the teams has a score higher than 15. What does n < 25 mean in the context of the basketball game?The expression n < 25 represents that the number n is less than 25.

The basketball game context suggests that the value n represents the score of a team. Therefore, the expression n < 25 implies that neither of the teams has a score equal to or greater than 25.Draw two number lines to represent the solutions to the two inequalities.

Below are two number lines representing the solutions to the two inequalities: Name a possible value for n that is a solution to both inequalities.

A possible value for n that is a solution to both inequalities is 20. This value satisfies both 15 < n and n < 25.Name a possible value for n that is a solution to 15 < n, but not a solution to n < 25.A possible value for n that is a solution to 15 < n but not a solution to n < 25 is 30.

This value satisfies 15 < n but is not less than 25.Can -8 be a solution to n in this context? Explain your reasoning. No, -8 cannot be a solution to n in this context.

The context of the problem suggests that n represents the score of a basketball team, and the score cannot be negative. Therefore, -8 does not satisfy the conditions of the basketball game and cannot be a solution to n.

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Please help me solve for Surface area and volume. The height of the cone is 15. Height of cylinder is 45. The height of the half of a circle is 5.

Answers

The surface area and volume of the cone, cylinder, and half of a circle are 525π, 675π, 2250π, 337.5π, and 112.5π, respectively. Here are the formulas for calculating the surface area and volume of a cone, cylinder, and half of a circle:

Cone:

Surface area = πr² + πrl

Volume = (1/3)πr²h

Cylinder:

Surface area = 2πr² + 2πrh

Volume = πr²h

Half of a circle:

Surface area = (1/2)πr²

Volume = (1/8)πr²h

Where:

r = radius

h = height

In your case, the height of the cone is 15, the height of the cylinder is 45, and the height of the half of a circle is 5.

Cone:

Surface area = π(15)² + π(15)(5) = 525π

Volume = (1/3)π(15)²(15) = 675π

Cylinder:

Surface area = 2π(15)² + 2π(15)(45) = 2250π

Volume = π(15)²(45) = 8100π

Half of a circle:

Surface area = (1/2)π(15)² = 337.5π

Volume = (1/8)π(15)²(5) = 112.5π

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Do leaves home at 2pm. He drives 45 minutes from home in first hour. He stops for 90minutes. He then drives home at an average speed of 15mph. Draw a distance-time graph to show don's journey

Answers

To draw a distance-time graph to show Don's journey, we need to follow the following steps:Step 1: Convert time to hours45 minutes = 0.75 hours90 minutes = 1.5 hours2 pm to 3:45 pm = 1.75 hours3:45 pm to 5:15 pm = 1.5 hoursStep 2: Calculate the distance Don's journey can be divided into three parts.

The distance covered in each part is as follows: Part 1: Don drives for 45 minutes. Since he does not mention the speed, we assume that he drives at a constant speed of 60 miles/hour. Therefore, the distance covered in the first part = 60 x 0.75 = 45 miles. Part 2: Don stops for 90 minutes. He does not move during this time, so the distance covered in the second part is 0 miles. Part 3: Don drives back home. We are given that he drives at an average speed of 15 miles/hour. Therefore, the distance covered in the third part = 15 x 1.5 = 22.5 miles. Step 3: Plot the graph The x-axis represents time, and the y-axis represents distance. We plot the three parts as follows: Part 1: Plot a line from the origin to (0.75, 45).

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