Identify the RATE OF CHANGE and INITIAL VALUE from ONE of the equations listed. A. Y = 3x 6 b. Y = -7x 5 c. Y = 9x 4.

Araceli had 20 minutes for a 3-problem quiz. She spent 11 7/10 minutes on question A and 3 2/5 minutes on question B, leaving her 5 1/5 minutes for question C. Effective time management is important during tests.

Araceli had 20 minutes to complete a three-problem quiz, and she spent 11 7/10 minutes on question A and 3 2/5 minutes on question B. To find out how much time she spent on question C, we can subtract the time she spent on question A and question B from the total time of 20 minutes:

20 minutes - 11 7/10 minutes - 3 2/5 minutes = 5 1/5 minutes

Therefore, Araceli spent 5 1/5 minutes on question C.

To know more about algebra, visit:
brainly.com/question/29131718
#SPJ11

Mr Dlamini will earn R960 for a full bus from Butterworth to East  London. The distance between Butterworth and East London is 100 kilometres.

Mr Dlamini transports people between Butterworth and East London using a bus with a capacity of 100 people. The transport charge starts with a minimum charge of R8 and thereafter it is increased by R2 for each kilometre.

On a particular day, the bus was full with passengers from Butterworth. In each and every kilometre, there was a passenger getting off while no new passenger entered the bus.

The distance between Butterworth and East London is 100 kilometres. Therefore, the total transport charge for the journey is 100 x (R8 + R2/km) = R960.

It is important to note that this is just the transport charge. Mr Dlamini may also incur other costs, such as fuel, maintenance, and insurance. Therefore, his actual profit may be less than R960.

Here is a table showing the transport charge for each kilometre:

Kilometers | Transport charge

------- | --------

0 | R8

1 | R10

2 | R12

... | ...

100 | R960

To know more about cost click here

brainly.com/question/19075809

#SPJ11

Given the figure, we have to find the value of y.Using the angle sum property of a quadrilateral, we know that the sum of angles in a quadrilateral is 360 degrees.

Therefore:

∠A + ∠B + ∠C + ∠D = 360°

We know that

∠A = 600°,

∠B = 120°, and

∠C = 100°

∠A + ∠B + ∠C + ∠D = 360°

600° + 120° + 100° + ∠D = 360°

820° + ∠D = 360°

∠D = 360° - 820°

∠D = -460°

Since angle D is not possible to be negative, we know that there must be a mistake in the diagram. We need to make sure that the figure is correct before we can find the value of y.

Therefore, the value of y cannot be determined with the information given in the figure.

To know more about angles ,visit;

https://brainly.com/question/25770607

#SPJ11

The expression 14 × 23 represents the total number of cups of dirt needed for 14 pots of flowers. By multiplying the number of pots (14) by the amount of dirt needed per pot (23), we find that a total of 322 cups of dirt are required to fill all 14 pots.

To calculate the total number of cups of dirt needed for 14 pots of flowers, we can use the expression 14 × 23.

Let's break down the problem and explain the steps involved.

Given information:

Each pot of flowers requires 23 cups of dirt.

We want to find the total number of cups of dirt needed for 14 pots.

To solve this, we can multiply the number of pots (14) by the number of cups of dirt required for each pot (23).

Expression: 14 × 23

When we multiply 14 by 23, we perform the following calculation:

14 × 3 = 42 (multiplying the units digit)

14 × 20 = 280 (multiplying the tens digit)

Summing the results: 280 + 42 = 322

Therefore, the total number of cups of dirt needed for 14 pots is 322 cups.

Let's analyze this further.

When we say that 1 pot of flowers requires 23 cups of dirt, it means that each individual pot needs a specific amount of dirt to be properly filled. Multiplying this amount by the number of pots (14) gives us the cumulative requirement for all the pots.

Using the expression 14 × 23, we are essentially multiplying the number of pots (14) by the amount of dirt needed per pot (23). This expression allows us to find the total quantity of dirt required to fill all 14 pots.

The multiplication process involves multiplying the units digit (4) of 14 by 3, which gives us 12. The result has a carry-over of 1, which we then multiply by the tens digit (2) of 14, resulting in 20. Finally, we add these two products (12 and 20) to obtain the final result of 322.

In conclusion, the expression 14 × 23 represents the total number of cups of dirt needed for 14 pots of flowers. By multiplying the number of pots (14) by the amount of dirt needed per pot (23), we find that a total of 322 cups of dirt are required to fill all 14 pots.

Learn more about expression here

https://brainly.com/question/1859113

#SPJ11

After dilating Triangle ABC with a scale factor of 1/4, the new coordinates of A', B', and C' are A'(2,1), B'(3,1), and C'(4,3), respectively.

To dilate Triangle ABC with a scale factor of 1/4, we need to multiply the coordinates of each vertex by the scale factor.

Let's apply the scale factor to each coordinate:

A' = (8 * 1/4, 4 * 1/4)

  = (2, 1)

B' = (12 * 1/4, 4 * 1/4)

  = (3, 1)

C' = (16 * 1/4, 12 * 1/4)

  = (4, 3)

Therefore, after dilating Triangle ABC with a scale factor of 1/4, the new coordinates of A', B', and C' are (2,1), (3,1), and (4,3) respectively. The scale factor of 1/4 shrinks the original triangle by a factor of 1/4 in both the x and y directions, resulting in a smaller triangle with the new coordinates.

To learn more about scale factor click here: rainly.com/question/22312172

#SPJ11

The tax revenue that Australia generate each year by instituting a income tax is $96,054,697,991. The Option C.

Tax revenue is the income that is collected by governments through taxation. To know the tax revenue, we will multiply the working population by the average salary and then multiply that by the tax rate.

Tax Revenue = (Working population) * (Average salary) * (Tax rate)

Tax Revenue = 11,565,470 * $26,450 * 0.314

Tax Revenue = $96,054,697,991

Read more about tax revenue

brainly.com/question/28015553

#SPJ4

If the value of a polynomial is 0 when x=5, then (x-5) must be a factor of the polynomial.

A polynomial is a mathematical expression consisting of variables (or indeterminates) and coefficients, combined using addition, subtraction, and multiplication operations.

Polynomials are widely used in mathematics and various fields such as physics, engineering, computer science, and economics. They play a crucial role in solving equations, interpolation, approximation, and modeling various phenomena. Polynomial equations are also studied extensively in algebra, and techniques like factoring, long division, synthetic division, and the quadratic formula are used to analyze and solve them.

Given that the value of a polynomial is 0 when x=5.

To find the expression which must be a factor of the polynomial we can use the factor theorem which states that:

If x-a is a factor of polynomial f(x), then f(a) = 0.So, if the value of a polynomial is 0 when x=5, then (x-5) must be a factor of the polynomial.

Hence, the required expression which must be a factor of the polynomial is (x - 5).

To know more about expression visit:

https://brainly.com/question/23258149

#SPJ11

Noah fills a soap dispenser from a big bottle that contains [tex]2\frac{1}{3}[/tex] liters of liquid soap. One dispenser can hold approximately 0.6667 liters of soap.

To determine how many liters of soap fit into one dispenser, we can divide the total amount of soap in the big bottle by the number of dispensers it can fill.

The big bottle contains [tex]2\frac{1}{3}[/tex] liters of liquid soap, which can fill 3 1/2 dispensers. We need to find the amount of soap that goes into one dispenser.

To find the amount of soap per dispenser, we divide the total amount of soap ([tex]2\frac{1}{3}[/tex] iters) by the number of dispensers ([tex]3\frac{1}{2}[/tex]).

First, we need to convert the mixed numbers into improper fractions:

[tex]2\frac{1}{3}[/tex] = (2 * 3 + 1) / 3 = 7/3

[tex]3\frac{1}{2}[/tex] = (3 * 2 + 1) / 2 = 7/2

Now, we divide 7/3 by 7/2:

(7/3) / (7/2) = (7/3) * (2/7) = (2/3)

Therefore, one dispenser can hold approximately 0.6667 liters of soap, or 2/3 of a liter.

Learn more about liters here:

https://brainly.com/question/30398948

#SPJ11

Therefore, the weight of B is 31 kg.

Let's solve the problem step by step.

1.Let's assign variables to the weights of the three individuals:

Weight of A = a

Weight of B = b

Weight of C = c

2.We are given that the average weight of A, B, and C is 45 kg:

(a + b + c) / 3 = 45

3.We are also given that the average of A and B is 40 kg:

(a + b) / 2 = 40

4.Additionally, we are given that the average of B and C is 43 kg:

(b + c) / 2 = 43

5.From equation 3, we can solve for a + b:

a + b = 2 * 40

a + b = 80

6.Substituting this value into equation 1:

(80 + c) / 3 = 45

7.Solving equation 6 for c:

80 + c = 3 * 45

80 + c = 135

c = 135 - 80

c = 55

8.Substituting the value of c into equation 4:

(b + 55) / 2 = 43

9.Solving equation 8 for b:

b + 55 = 2 * 43

b + 55 = 86

b = 86 - 55

b = 31

Therefore, the weight of B is 31 kg.

To learn more about variables visit:
brainly.com/question/15078630

#SPJ11

The total number of pennies on Rows 1-4 (the first 32 squares) is 232. The content loaded formula can be used to calculate the total number of pennies on the Rows 1-4 of the first 32 squares.

formula = 2^(n-1) + 2^(n-2) + 2^(n-3) + 2^(n-4) + 2^(n-5) + ……+ 2^1 + 2^0Where n = the number of rows The first four rows of the chessboard have 2^(4-1) = 8, 2^(4-2) = 4, 2^(4-3) = 2, and 2^(4-4) = 1 pennies respectively .The total number of pennies on the first 32 squares (Rows 1-4) is calculated using the following formula; Total = 8 + 4 + 2 + 1 = 15For the first four rows (the first 32 squares), the total number of pennies is 15. Hence, the correct option is 15.

Learn more about  total number here:

https://brainly.com/question/30422918

#SPJ11

the DJIA closed at approximately 8,634.86 points on December 5th, 2008. Therefore, option C is the closest answer.

To calculate the closing value on December 5th, we need to perform the following steps:

Calculate the decrease on December 4th: 2.51% of 8,591.69 = 215.64 points.

Subtract the decrease from the December 3rd closing value: 8,591.69 - 215.64 = 8,376.05 points.

Calculate the increase on December 5th: 3.09% of 8,376.05 = 258.69 points.

Add the increase to the December 4th closing value: 8,376.05 + 258.69 = 8,634.74 points.

Rounding to the nearest point, the DJIA closed at approximately 8,634.86 points on December 5th, 2008. Therefore, option C is the closest answer.

Learn more about closing value here:

https://brainly.com/question/29617879

#SPJ11

In a blood sample with 500 bacteria, a drug reduces the number of bacteria by half every hour. We need to write an exponential function, r(n), as a function of the number of hours, n, since the drug was taken.

When the number of bacteria decreases by half every hour, it indicates exponential decay. The general form of an exponential decay function is given by r(n) = a * (1/2)^n, where "a" represents the initial quantity and "n" represents the number of hours.

In this case, the initial quantity of bacteria is 500. Therefore, the exponential function representing the remaining bacteria after "n" hours can be written as:

r(n) = 500 * (1/2)^n

This function shows that the number of bacteria, r(n), decreases by half (1/2) for each hour (n) that has passed since the drug was taken.

For example, after 1 hour (n = 1), the function becomes:

r(1) = 500 * (1/2)^1 = 250

After 2 hours (n = 2), the function becomes:

r(2) = 500 * (1/2)^2 = 125

And so on.

The exponential function allows us to model the decay of bacteria over time due to the drug's effect. By plugging in different values of "n," we can calculate the remaining quantity of bacteria. It's important to note that exponential decay represents a decreasing quantity, and in this case, the decay rate is 1/2 per hour.

Learn more about exponential decay here:- brainly.com/question/2193799

#SPJ11

The exact value of tangent (19π/12) is option C: StartFraction 3 minus StartRoot 3 EndRoot Over 3 + StartRoot 3 EndRoot EndFraction.

To find the exact value of tangent (19π/12), we can use the trigonometric identity:

tangent (θ) = sin (θ) / cos (θ).

First, let's find the values of sin (19π/12) and cos (19π/12).

Using the unit circle, we can determine that sin (19π/12) = -1/2 and cos (19π/12) = -√3/2.

Now we can substitute these values into the tangent formula:

tangent (19π/12) = sin (19π/12) / cos (19π/12) = (-1/2) / (-√3/2).

Simplifying the expression by multiplying the numerator and denominator by 2/√3:

tangent (19π/12) = (-1/2) * (2/√3) / (-√3/2) = (1/√3).

To rationalize the denominator, we multiply the numerator and denominator by √3:

tangent (19π/12) = (1/√3) * (√3/√3) = √3/3.

Therefore, the exact value of tangent (19π/12) is option C: StartFraction 3 minus StartRoot 3 EndRoot Over 3 + StartRoot 3 EndRoot EndFraction.

Learn more about tangent here

https://brainly.com/question/4470346

#SPJ11

Amilia has 20 times as many toothpicks as Tim. Tim has 3 tooth picks. Amilia has 60 tooth picks.

To determine how many times as many toothpicks Amilia has compared to Tim, we can divide the number of toothpicks Amilia has by the number of toothpicks Tim has.

Amilia has 60 toothpicks, while Tim has 3 toothpicks.

To calculate the ratio, we divide the number of toothpicks Amilia has by the number of toothpicks Tim has:

60 / 3 = 20

Therefore, Amilia has 20 times as many toothpicks as Tim. This means that the number of toothpicks Amilia has is twenty times greater than the number of toothpicks Tim has. It indicates a significant difference in the quantity of toothpicks possessed by the two individuals.

Learn more about toothpicks here

https://brainly.com/question/26941173

#SPJ11

The lateral area of the snow cone is approximately 13.5 square inches.

The lateral area of a cone can be calculated using the formula:

Lateral Area = π * radius * slant height

First, we need to find the radius of the snow cone. The radius is half of the diameter, so:

Radius = 1.9 inches / 2 = 0.95 inches

Now we can calculate the lateral area using the formula:

Lateral Area = π * 0.95 inches * 4.5 inches

Lateral Area ≈ 13.454 square inches

Rounding to the nearest tenth, the lateral area of the snow cone is approximately 13.5 square inches.

Learn more about area at https://brainly.com/question/25292087

#SPJ1

When talking about a limit of a function at a particular point, it's significant to note that this means evaluating the function as the input approaches that point. It's worth noting that the point in question must be a limit point of the domain of the function for the function to have a limit.

An isolated point is one that doesn't have any other points near it in the domain of the function. Because of this, it makes no sense to consider the limit of a function at an isolated point of the domain of the function.

A limit is defined as the value that a function approaches as the input (x) approaches a certain point (c). This definition is simple enough, but it necessitates the function having values near that point in the domain. That is to say, there must be a sufficient number of points near the point c in the domain such that we can talk about the input approaching c without going out of the domain.

To know more about  domain visit:

https://brainly.com/question/30133157

#SPJ11

The statement that holds true is that for every 1 1/2 cups of cheese used, there should be 6 ounces of pasta.

Based on the given ratio of 1 1/2 cups of cheese to 6 ounces of pasta in the recipe, the following statement is true:

For every 1 1/2 cups of cheese used, there should be 6 ounces of pasta.

The ratio indicates the proportion or relationship between the amounts of cheese and pasta in the recipe. In this case, for each 1 1/2 cups of cheese, the recipe calls for 6 ounces of pasta. This means that the quantities of cheese and pasta are in a consistent and proportional relationship.

To illustrate this further, if you were to double the amount of cheese used in the recipe, you would also need to double the amount of pasta. For example, if you use 3 cups of cheese, you would need 12 ounces of pasta (2 times 6 ounces).

Therefore, based on the given ratio, the statement that holds true is that for every 1 1/2 cups of cheese used, there should be 6 ounces of pasta.

Learn more about statement here

https://brainly.com/question/2263644

#SPJ11

No, the function f(x) = πsin(3x) - 4xsin(2x) is not a sinusoid. A sinusoid is a function that can be represented by a sine or cosine function with certain characteristics.

In the given function f(x) = πsin(3x) - 4xsin(2x), we can see that there are two sine terms with different frequencies, 3x and 2x. This indicates that the function does not have a constant frequency, which is a requirement for a sinusoid. Additionally, the presence of the term -4x introduces a linear term, which further deviates from the sinusoidal form.

Therefore, due to the varying frequencies and the inclusion of a linear term, the function f(x) = πsin(3x) - 4xsin(2x) does not meet the criteria to be classified as a sinusoid.

To learn more about function click here, brainly.com/question/30721594

#SPJ11

The function being integrated and considering convergence at individual points and behavior at infinity, one can determine whether an integral converges or diverges.

To determine if an integral converges or diverges, one must analyze the behavior of the function being integrated and evaluate certain criteria.

When dealing with improper integrals (integrals with infinite limits or integrals of unbounded functions), there are two key criteria to consider: convergence at a single point and behavior at infinity.

Convergence at a single point: If the function being integrated has a finite value at a particular point within the integration limits, then the integral converges at that point. However, if the function approaches infinity or oscillates without settling on a specific value at that point, the integral diverges.

Behavior at infinity: For integrals with infinite limits, it is crucial to determine the behavior of the function as the variable approaches infinity. If the function approaches zero or a finite value as the variable grows indefinitely, the integral converges. However, if the function approaches infinity or oscillates without settling on a specific value, the integral diverges.

To apply these criteria effectively, it may be necessary to use additional techniques such as comparison tests (e.g., the limit comparison test, integral comparison test), the ratio test, the root test, or other methods tailored to specific functions or situations. These techniques allow for a more rigorous analysis of convergence or divergence.

Overall, by carefully examining the behavior of the function being integrated and considering convergence at individual points and behavior at infinity, one can determine whether an integral converges or diverges.

Learn more about convergence here

https://brainly.com/question/31398445

#SPJ11

Based on the given data, Jocelyn could expect to have an average speed of approximately 6.9 minutes per mile on the 9th day.

To determine the expected average speed on the 9th day, we can analyze the trend in Jocelyn's average speed over the first six days. From the data provided, it can be observed that her average speed is gradually decreasing, indicating an improvement in her running performance.

By examining the given values, we can see that there is a consistent decrease in the average speed from 8.2 minutes per mile to 7.5 minutes per mile over the initial six days. Assuming this trend continues, we can expect Jocelyn's average speed to continue to decrease on the 9th day.

Therefore, it is reasonable to predict that Jocelyn's average speed on the 9th day would be approximately 6.9 minutes per mile, as the trend suggests a gradual improvement in her running speed. However, it's important to note that this is an estimation based on the given data, and actual results may vary.

Learn more about average speed here:

https://brainly.com/question/14870444

#SPJ11

The average yearly temperature in New York is 56°F, while the average yearly temperature in Alaska is -11°F. This is because New York is located in a temperate climate zone, while Alaska is located in an arctic climate zone. The temperate zone has warm summers and cool winters, while the arctic zone has long, cold winters and short, cool summers.

The average temperature in New York is higher because it is closer to the equator and therefore receives more sunlight throughout the year. In contrast, Alaska is farther from the equator and receives less sunlight, leading to colder temperatures. Additionally, Alaska is known for its large snowfall amounts, which contributes to the low average temperature. New York and Alaska are two of the most popular states in the United States of America. The average yearly temperature in New York is 56°F, while the average yearly temperature in Alaska is -11°F. This is because New York is located in a temperate climate zone, while Alaska is located in an arctic climate zone.

The temperate zone has warm summers and cool winters, while the arctic zone has long, cold winters and short, cool summers. The average temperature in New York is higher because it is closer to the equator and therefore receives more sunlight throughout the year. In contrast, Alaska is farther from the equator and receives less sunlight, leading to colder temperatures. Additionally, Alaska is known for its large snowfall amounts, which contributes to the low average temperature. The difference in temperature between these two states is significant and can be attributed to various factors such as geography, climate, latitude, and distance from the equator. These factors impact the amount of sunlight that each state receives and, in turn, affect the overall temperature. Furthermore, these factors also influence other aspects of life, such as plant growth and wildlife, making each state unique.

To know more about average visit:

https://brainly.com/question/31764512

#SPJ11

Marcus ends up paying $37.70 for the two shirts. To calculate the final price Marcus pays for the shirts, we need to follow these steps:

Calculate the discounted price of each shirt: Since the shirts are on a 30% off rack, the discounted price of the first shirt is 0.70 * $28.99 = $20.29, and the discounted price of the second shirt is 0.70 * $30.29 = $21.20.

Calculate the total cost of the shirts before tax: The total cost of the two shirts is $20.29 + $21.20 = $41.49.Apply the additional 10% off discount: To calculate the final price after the additional discount, we need to subtract 10% from the total cost. 10% of $41.49 is 0.10 * $41.49 = $4.15. Subtracting this amount from the total cost gives us $41.49 - $4.15 = $37.34.

Add the sales tax: To calculate the final price including the 6% sales tax, we need to add 6% of $37.34 to the total cost. 6% of $37.34 is 0.06 * $37.34 = $2.24. Adding this amount to the total cost gives us $37.34 + $2.24 = $39.58.

Rounding to the nearest cent, Marcus ends up paying $39.59 for the two shirts. Therefore, the correct answer is option a. $39.59.

Learn more about tax here:- brainly.com/question/12611692

#SPJ11

The discounted-price of the game system is $154.00, given the original-cost of a video game system is $175 and Raymond works in an electronics store and gets a 12 percent employee discount.

The discounted price, we need to find 12% of $175 which is equal to: [tex]\frac{12}{100}\times175=21[/tex]

The employee discount is $21.

We need to subtract this discount from the original cost:

175 - $21 = 154

So, the discounted price of the game system is $154.00.

Therefore, the correct option is $154.00

The discounted price of the game system is indeed $154.00.

The original cost of the game system is $175, and

Raymond receives a 12% employee discount.

We calculate 12% of $175, which is $21.

By subtracting this discount from the original cost, we get $154.00, which is the final discounted price.

To know more about original-cost, visit:

https://brainly.com/question/30143744

#SPJ11

L ≈ 35.8 ,the length of the arc to the nearest tenth is 35.8 units

The formula for calculating the length of an arc intercepted by a central angle is L=, where L is the arc's length,  is the circle's radius, and  is the central angle in radians. The length of the arc to the nearest tenth is 35.8 units. Given, In a circle with radius r = 6.5, an angle measuring  = 5.5 radians intercepts an arc. We know that the formula for calculating the length of an arc intercepted by a central angle is L=, where L is the arc's length,  is the circle's radius, and  is the central angle in radians. Substituting the values in the formula, we get:

L = rL = 6.5(5.5)L = 35.75 ≈ 35.8 (to the nearest 10th)

Therefore, the length of the arc to the nearest tenth is 35.8 units.

In a circle, the length of an arc intercepted by a central angle is determined by the central angle's size and the circle's radius. This is known as the arc's length formula. L=where L is the arc length,  is the radius of the circle, and  is the central angle in radians. We can use this formula to find the length of an arc intercepted by a central angle in a circle. Let's consider the following illustration to understand the concept better. In a circle with a radius of 6.5, an angle of 5.5 radians intercepts an arc. We'll use the arc length formula to find the arc's length, L.L= (Length of arc formula)Substitute the given value of r and  in the formula. L = 6.5 × 5.5L = 35.75The length of the arc is 35.75 units. We'll round this answer to the nearest tenth to get the final answer. L ≈ 35.8Therefore, the length of the arc to the nearest tenth is 35.8 units.

To know more about length of an arc visit:-

https://brainly.com/question/31762064

#SPJ11

The rational numbers 3.70 and 3.75 lie between 14, forming a range or interval in which 14 is situated.

To determine the rational numbers between 14, we need to find two numbers that are greater than 14 and two numbers that are less than 14. From the given options, 3.70 and 3.75 are the two rational numbers that lie between 14. They are both less than 14 but greater than the other options provided. These numbers form a range or interval in which 14 is situated.

The rational number 3.70 is less than 14, but it is closer to 14 compared to the other options provided. Similarly, 3.75 is also less than 14 but closer to it compared to the other options. Thus, both 3.70 and 3.75 form a range that includes 14 as a rational number between them.

In conclusion, the rational numbers 3.70 and 3.75 lie between 14, forming a range or interval in which 14 is situated.

Learn more about rational numbers here

https://brainly.com/question/31302138

#SPJ11

Yes, the equation y - 250x = 500 represents the same relationship between the distance from the start of the trail and the elevation.

The given equation is y - 250x = 500.
The above equation is of the form y = mx + c, where m = slope of the line and c = y-intercept of the line.
Let us convert the given equation into the form y = mx + c, y - 250x = 500, y = 250x + 500. Now, we can see that this equation is of the form y = mx + c, where m = 250, which means that the slope of the line is 250 and the value of y-intercept is 500.

Thus, the equation y - 250x = 500 represents the relationship between the distance from the start of the trail and the elevation.

To know more about distance, click here

https://brainly.com/question/13034462

#SPJ11

The expected payout is 5.625 cents, and the cost to play the game is 7 cents, it can be concluded that paying 7 cents to play this game is not fair. The expected payout is lower than the cost, resulting in a disadvantage for the player.

In this game, tossing 3 fair coins results in different payouts for the number of heads obtained. The payouts are 12 cents for 3 heads, 7 cents for 2 heads, and 4 cents for 1 head. The question is whether paying 7 cents to play this game is fair.

To determine if the game is fair, we need to compare the expected payout with the cost to play. Let's calculate the probabilities and payouts for each outcome. There are a total of 8 possible outcomes when tossing 3 coins: HHH, HHT, HTH, THH, TTH, THT, HTT, and TTT (H denotes a head, and T denotes a tail).

The probability of getting 3 heads is 1/8, so the payout for this outcome is 12 cents. The probability of getting 2 heads is 3/8 (HHH, HHT, HTH), so the payout for this outcome is 7 cents. The probability of getting 1 head is also 3/8 (TTH, THT, HTT), resulting in a payout of 4 cents. The probability of getting 0 heads (3 tails) is 1/8, resulting in a payout of 0 cents.

Now, let's calculate the expected payout by multiplying each outcome's probability with its corresponding payout and summing them up:

Expected payout = (1/8 * 12) + (3/8 * 7) + (3/8 * 4) + (1/8 * 0) = 1.5 + 2.625 + 1.5 + 0 = 5.625 cents.

Since the expected payout is 5.625 cents, and the cost to play the game is 7 cents, it can be concluded that paying 7 cents to play this game is not fair. The expected payout is lower than the cost, resulting in a disadvantage for the player.

Learn more about probability here: https://brainly.com/question/31828911

#SPJ11

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill & \$ 240000\\ P=\textit{original amount deposited}\\ r=rate\to 4.6\%\to \frac{4.6}{100}\dotfill &0.046\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &20 \end{cases}[/tex]

[tex]240000 = P\left(1+\frac{0.046}{12}\right)^{12\cdot 20} \implies 240000=P\left( \cfrac{6023}{6000} \right)^{240} \\\\\\ \cfrac{240000}{ ~~ \left( \frac{6023}{6000} \right)^{240} ~~ }=P\implies 95810\approx P[/tex]

James has 117 merit points, Sarah has 351 merit points, and Robert has 56 merit points.

Let's break down the given information and solve the problem step by step.

Let's assume James has x merit points.

According to the given information, Sarah has three times as many merit points as James. Therefore, Sarah has 3x merit points.

Robert has 61 fewer merit points than James. So, Robert has (x - 61) merit points.

Now, we can calculate the total value of the merit points in pence. Since each merit point is worth 3 pence, we can express the total value in pence as:

Value in pence = (x * 3) + (3x * 3) + ((x - 61) * 3)

Next, we need to convert the total value from pence to pounds. Since there are 100 pence in 1 pound, we divide the total value in pence by 100 to get the value in pounds:

Value in pounds = Value in pence / 100

According to the problem, the total value is £15.72. So we can set up the equation:

Value in pounds = 15.72

Now we can substitute the expression for the value in pounds into the equation:

((x * 3) + (3x * 3) + ((x - 61) * 3)) / 100 = 15.72

Simplifying the equation:

(3x + 9x + 3x - 183) / 100 = 15.72

Combining like terms:

15x - 183 / 100 = 15.72

Multiplying both sides of the equation by 100 to eliminate the fraction:

15x - 183 = 1572

Adding 183 to both sides:

15x = 1755

Dividing both sides by 15:

x = 117

Now we have the value of x, which represents the number of merit points James has. Plugging this value into the expressions we obtained earlier, we can find the number of merit points for each student:

James: x = 117 merit points

Sarah: 3x = 3 * 117 = 351 merit points

Robert: (x - 61) = 117 - 61 = 56 merit points

Therefore, James has 117 merit points, Sarah has 351 merit points, and Robert has 56 merit points.

Learn more about Sarah here

https://brainly.com/question/30301642

#SPJ11

The total area of the roof that will need shingles is 660 square feet.

Construction projects often use the Pythagorean Theorem.

If you are building a sloped roof and you know the height of the roof and the length for it to cover, you can use the Pythagorean Theorem to find the diagonal length of the roof's slope.

In order to find the diagonal length of the roof's slope, we must use the

Pythagorean Theorem which is: a² + b² = c²,

where a and b are the sides of a right triangle, and c is the hypotenuse.

Given that the roof has a vertical height of 8 feet and the house has a width of 20 feet, we need to calculate the diagonal length of the roof top.

We can use the Pythagorean Theorem to find the length of the roof's diagonal, which is represented by the hypotenuse of the right triangle.
Therefore,
a = 8 feet and b = 20 feet
c² = a² + b²
c² = 8² + 20²
c² = 64 + 400
c² = 464
c ≈ 21.54
The diagonal length of the roof top is ≈ 22 feet.
The horizontal length of the roof is 30 feet.

The total area of the roof that will need shingles can be calculated by multiplying the horizontal length of the roof by the diagonal length of the roof.
Therefore,
Total area of the roof that will need shingles = Horizontal length × Diagonal length
Total area of the roof that will need shingles = 30 feet × 22 feet
Total area of the roof that will need shingles = 660 square feet

To know more about square feet visit:
https://brainly.com/question/30678567

#SPJ11