What is the difference in credit score between those over the age of 55 and those between 18-24 years old?

Answers

Answer 1

According to recent studies, there is a notable difference in credit scores between those over the age of 55 and those between the ages of 18-24.

On average, individuals over the age of 55 tend to have higher credit scores than those in the 18-24 age range. This is primarily due to the fact that older individuals have had more time to establish and build their credit history, whereas younger individuals are just starting out and may not have had the opportunity to establish credit yet.

Additionally, older individuals tend to have more stable financial situations and may have less debt compared to younger individuals who may be dealing with student loans or other types of debt.

However, it's important to note that credit scores can vary greatly between individuals, regardless of age, and there are many factors that contribute to credit score, such as payment history, credit utilization, and length of credit history.

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Related Questions

Solve for x trigonometry

Answers

Step-by-step explanation:

We are given an angle opposite of the side length x and the hypotenuse 10.

Use SOHCAHTOA, use Sin

[tex] \sin( \alpha ) = \frac{o}{h} [/tex]

We the angle is 20

and the hypotenuse is 10 and the opposite is x.

[tex] \sin(20) = \frac{x}{10} [/tex]

[tex]10 \sin(20) = x[/tex]

And we get

[tex]x = 3.42[/tex]

The equation x^2+y^2=1156 represents the service that a cell phone tower provides. How far from the tower will you receive cell phone service?

Answers

The distance from the tower that you will receive the phone service is: 34 units

How to find the equation of the circle?

The general form of the equation of a circle is:

(x – h)² + (y – k)² = r²

where:

(h, k) represents the location of the circle's center.

r represents the length of its radius.

We are given the equation that represents the service that a cell phone tower provides. The equation is:

x² + y² = 1156

Expressing in standard form of equation of a circle gives:

(x – 0)² + (y – 0)² = 34²

Thus, r = 34 will denote the distance from the tower that you will receive the phone service

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A triangle has an area of 52 in², what would the area be if the base was one half as long and the height was twice as long?

Answers

If the base was one half as long and the height was twice as long, then the area of the triangle will be 52 in².

To find the area of a triangle, we use the formula: area = (base × height) / 2. Given that the original triangle has an area of 52 square inches, we can represent this as: 52 = (base × height) / 2.

Now, let's consider the new triangle, where the base is half as long and the height is twice as long. This can be represented as base' = base / 2 and height' = height × 2.

Using the formula for the area of the new triangle, we have: area' = (base' × height') / 2 = ((base / 2) × (height × 2)) / 2.

By simplifying the equation, we see that the factors of 2 cancel out, leaving us with: area' = (base × height) / 2.

As we know that the area of the original triangle is 52 square inches, we can conclude that the area of the new triangle will also be 52 square inches. This is because the changes to the base and height essentially cancel each other out, resulting in the same overall area.

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Ocala software systems operates a technical support center for its software customers. if customers have installation or use problems with ocala software products, they may telephone the technical support center and obtain free consultation. currently, ocala operates its support center with one consultant. if the consultant is busy when a new customer call arrives, the customer hears a recorded message stating that all consultants are currently busy with other customers. the customer is then asked to hold and is told that a consultant will provide assistance as soon as possible. the customer calls follow a poisson probability distribution, with an arrival rate of seven calls per hour. on average, it takes 8.5 minutes for a consultant to answer a customer's questions. the service time follows an exponential probability distribution. to improve customer service, ocala software systems wants to investigate the effect of using a second consultant at its technical support center. what is the probability that a customer will have to wait for one of the consultants

Answers

The probability that a customer has to wait for one of the consultants (Pw) is 0.9516.

To find the probability that a customer will have to wait for one of the consultants, we need to analyze the current system and compare it to the proposed system with two consultants. Here's a step-by-step explanation:

1. Identify the given parameters:
- Arrival rate (λ) = 7 calls per hour
- Service rate (µ) = 1 call per 8.5 minutes = 60 minutes / 8.5 minutes = 7.06 calls per hour (approximately)

2. Calculate the traffic intensity (ρ):
- ρ = λ / µ = 7 / 7.06 = 0.9915 (approximately)

3. Find the probability of 0 customers in the system (P0) for a 2-consultant system:
- P0 = 1 / (1 + (2 * ρ) + (ρ^2 / (1 - ρ))) = 1 / (1 + (2 * 0.9915) + (0.9915^2 / (1 - 0.9915))) ≈ 0.0086

4. Calculate the probability that a customer has to wait for one of the consultants (Pw):
- Pw = (ρ^2 / (2 * (1 - ρ))) * P0 = (0.9915^2 / (2 * (1 - 0.9915))) * 0.0086 ≈ 0.9516

So, there is approximately a 95.16% chance that a customer will have to wait for one of the consultants at Ocala Software Systems' technical support center when two consultants are employed.

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Under which
transformation would AA'B'C', the wen 2.
image of AABC, not be congruent to AABC?
a. reflection over the y-axis
b.
rotation of 90° clockwise about the origin
c. translation of 3 units right and 2 units down
d. dilation with a scale factor of 2 centered at
the origin

Answers

The answer is a reflection over the y-axis

PLEASE HELP SERIOUSLY!
1. The following is a set of 30 scores achieved by students on an exam:
18 23 23 33 38 38 38 42 51 55 56 57 63 65 66 68 68 68 68 76 80 81 82 85 89 92 93 93 95 97 100

Determine the percentile rank for each of the following scores. Remember to round all percentiles up to the next whole
number.
a) 80
b) 68

2. A total of 700 individuals take a government employment exam. Carmela scores 618 out of 800 marks. There are 520 individuals who score less than
618 marks.
a) Find Carmela's percent score
b) Find Carmela's percentile rank.
c) In order to get a job with the government an individual has be in the top 20% of people writing the exam. Will Carmela get a job? Explain.

Answers

The percentile rank for a score of 80 is 70%.

The percentile rank for a score of 68 is 57%.

Carmela's percent score is 77.25%.

Carmela's percentile rank is 75%.

Carmela is eligible for a job with the government.

What is the percentile rank?

a) For a score of 80, there are 21 out of 30 scores that are equal to or less than 80

Therefore, the percentile rank for a score of 80 is (21/30) x 100% = 70%.

b) For a score of 68, there are 17 out of 30 scores that are equal to or less than 68.

Therefore, the percentile rank for a score of 68 is (17/30) x 100% = 57%.

2a) Carmela's percent score is (618/800) x 100% = 77.25%.

b) Carmela's percentile rank:

520 individuals scored less than Carmela's score of 618.

Therefore, her percentile rank is (520/700) x 100%

Carmela's percentile rank = 75%.

c) To be in the top 20% of individuals writing the exam, Carmela's score needs to be greater than or equal to the score of the 80th percentile.

The score of the 80th percentile is 0.8 * 700 = 560.

Therefore, the top 20% of individuals scored 560 or higher.

Carmela's score of 618 places her in the top 20% of individuals and makes her eligible for a job with the government.

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Jocelyn is designing a bed for cactus specimens at a botanical garden. The total area can be
modeled by the expression 2x2 + 7x +3, where x is in feet.
Suppose in one design the length of the cactus bed is 4x, and in another, the length is 2x + 1. What are the widths of
the two designs?

Answers

The width of the first design is -2.5 feet and the width of the second design is 0.5 feet.

How to calculate thw width

For the first design, where the length is 4x, the total area is:

2(4x)² + 7(4x) + 3 = 32x² + 28x + 3

To find the width, we can divide the total area by the length:

width = (32x² + 28x + 3) / 4x

width = 8x + 7 + 3/4x

For the second design, where the length is 2x + 1, the total area is:

2(2x + 1)² + 7(2x + 1) + 3 = 8x² + 23x + 5

width = (8x² + 23x + 5) / (2x + 1)

width = 4x + 2 + 1/(2x + 1)

For the first design:

width = 8(-1/2) + 7 + 3/4(-1/2) = -2.5 feet

For the second design:

width = 4(-1/2) + 2 + 1/(2(-1/2) + 1) = 0.5 feet

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1. 20% of the items manufactured by a certain process are known to be defective. 18 items are chosen at random. a. how many would you expect to be defective? explain briefly what this means. b. find the probability that at least 4 are defective. give a numerical answer.

Answers

The expected number of defective items and the probability of at least 4 are defective is equal to 3.6 and 0.370 or 37.0%.

Total number of items 'n' = 18

Probability of an item being defective 'p' =20%

                                                                    = 0.2  

Expected number of defective items,

Use the formula for the expected value of a binomial distribution,

E(X) = np

where X is the number of defective items.

Plug in the values we have,

E(X) = 18 x 0.2

      = 3.6

Expect average items out of 18 to be defective = 3.6  .

Probability that at least 4 items are defective,

Calculate the probability of 4, 5, 6, ..., 18 defective items

Use the complement rule to simplify it,

P(at least 4 defective)

= 1 - P(less than 4 defective)

Using the CDF function,

'binomcdf' is the binomial cumulative distribution function.

18 is the number of trials,

0.2 is the probability of success,

And 3 is the maximum number of successes

P(less than 4 defective)

= binomcdf (18, 0.2, 3)

= P(X <= 3)

=[tex]\sum_{x=0}^{3}[/tex] ¹⁸Cₓ × (0.2)^x × (0.8)^(18-x)

= ¹⁸C₀× (0.2)^0 × (0.8)^(18-0) + ¹⁸C₁× (0.2)^1 × (0.8)^(18-1) + ¹⁸C₂× (0.2)^2 × (0.8)^(18-2) + ¹⁸C₃× (0.2)^3 × (0.8)^(18-3)

= (0.8)^(18) + 18× (0.2) × (0.8)^(17) + 153 × (0.04) × (0.8)^(16) + 1632× (0.008) × (0.8)^(15)

= 0.630

Plug in the values,

P(at least 4 defective)

= 1 - 0.630

= 0.370

Therefore, the expected items to be defective and probability that at least 4 items out of 18 are defective is equal to 3.6 and 0.370 or 37.0%.

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You pick a card at random. Without putting the first card back, you pick a second card at random

What is the probability of picking an odd number and then picking an even number?

Answers

The probability of picking an odd number and then picking an even number 5/18

The probability of picking an odd number on the first card is 1/2 since there are 5 odd cards out of 10 total cards. After picking an odd card, there are now 4 odd cards and 5 even cards left out of a total of 9 cards. So the probability of picking an even card on the second draw is 5/9.

To find the probability of both events happening, we multiply the probabilities:

P(odd and even) = P(odd) * P(even | odd)

= (1/2) * (5/9)

= 5/18

Therefore, the probability of picking an odd number and then picking an even number is 5/18.

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he gift box is shaped like a rectangular prism. The box is 8.5 inches wide, 5 inches long, 5.1 inches tall. What is the volume of the box in cubic inches?

Answers

The volume of the gift box shaped like a rectangular prism whose dimensions are 8.5 in wide, 5 in long, and 5.1 in tall is 216.75 in³ .

The volume of rectangular prism = L × W × H

L = Length of the rectangular prism

W = Width of the rectangular prism

H = Height of the rectangular prism

Here, L = 5 in , W = 8.5 in , H = 5.1 in

The volume of rectangular prism = 5 × 8.5 × 5.1

The volume of rectangular prism = 216.75 in³

The volume of gift box shaped like a rectangular prism is 216.75 in³ .

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The line 15 + y = 3x is dilated with a scale factor of 3 about the point (3, -6). Write the equation of the dilated line in slope-intercept form

Answers

The equation of the dilated line in slope-intercept form is:
y' = 3x' - 3

To find the equation of the dilated line in slope-intercept form, we'll follow these steps:

1. Convert the original equation into slope-intercept form (y = mx + b).
2. Find the coordinates of the point after dilation.
3. Use the slope from the original equation and the new point to find the new equation.

Step 1: Convert the original equation into slope-intercept form:
15 + y = 3x
y = 3x - 15

Step 2: Find the coordinates of the point after dilation:
Dilation formula: (x', y') = (a(x - h) + h, a(y - k) + k)
Given point (h, k) = (3, -6) and scale factor a = 3

x' = 3(x - 3) + 3
y' = 3(y + 6) - 6

Step 3: Use the slope from the original equation (m = 3) and the new point (x', y') to find the new equation:
y' = 3x' + b

Substitute the expressions for x' and y' from step 2:
3(y + 6) - 6 = 3(3(x - 3) + 3) + b

Simplify the equation and solve for b:
3y + 18 - 6 = 9x - 27 + 9 + b
3y + 12 = 9x - 18 + b

Now, substitute the original point (3, -6) into the equation to find b:
-6 + 12 = 9(3) - 18 + b
6 = 27 - 18 + b
6 = 9 + b

b = -3

The equation of the dilated line in slope-intercept form is:
y' = 3x' - 3

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If pp and qq vary inversely and pp is 19 when qq is 30, determine qq when pp is equal to 95

Answers

When the value of pp=95 the value of qq will be equal to 6.

It is given that pp varies inversely with qq, so we can write that

pp=k/qq

where k is the proportionality constant.

here we can find the value of k by substituting the value of pp and qq with 19 and 30 in the relation that is given above, we get:

30=k/19

k=30*19

k=570

we the value of k to be 570 after putting the values in the relation.

Now if pp is changed to 95, and k is equal to 570 we can get the value of qq by putting the known values in the same relation.

pp=k/qq

qq=570/95

qq=6.

Therefore, when the value of pp is 95 the value for qq will be equal to 6.

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Victor drew trapezoid PQRS on a


coordinate plane. The coordinates of each


vertex are:


P(8,4) Q(10, 4) R(13,-1) S(8,-1)


ion


What is the length, in units, of side PS?


A. 2


B. 3


C. 4


D. 5

Answers

The coordinates of each vertex are: P(8,4) Q(10, 4) R(13,-1) S(8,-1) then the length of side PS is 0 units.

Side PS is the bottom base of trapezoid PQRS. To find its length, we need to calculate the horizontal distance between the x-coordinates of points P and S.

The x-coordinate of point P is 8, and the x-coordinate of point S is also 8. Therefore, the horizontal distance between these two points is 0. So, the length of side PS is 0 units.

The answer is (A) 2 is not correct because the length of side PS cannot be negative or less than zero, and the length of the other base of the trapezoid (QR) is 2 units, which is not equal to the length of side PS.

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A bicycle wheel has a diameter of 26 inches. Isabelle rides the bike so that the wheel makes two complete rotations per second. Which function models the height of a spot on the edge of the wheel?
A. h(t) = 13 sin(2π t) + 13
B. h(t) = 13 sin(4π t)
C. h(t) = 13 sin(4π t) + 13
D. h(t) = 13 sin(2π t)

Answers

Answer:

I can definitely help you with that math problem! Given the information about the bicycle wheel, we need to find the function that models the height of a spot on the edge of the wheel. We know that the wheel has a diameter of 26 inches, which means the radius is half of that, or 13 inches. Isabelle rides the bike so that the wheel makes two complete rotations per second, which means the period of the function is 1/2 second (since it takes half a second for the wheel to complete one rotation).

Using the formula for a sinusoidal function, we can write the function as h(t) = A sin(2π/B (t - h)) + k, where A is the amplitude, B is the period, h is the horizontal shift, and k is the vertical shift. We can determine the values of these parameters as follows:

- Amplitude: The amplitude is half the distance between the highest and lowest points of the function. Since the radius of the wheel is 13 inches, the highest and lowest points are 26 inches apart. Therefore, the amplitude is 13 inches.

- Period: We know that the period is 1/2 second, so B = 2π/1/2 = 4π.

- Horizontal shift: The function starts at its highest point, so there is no horizontal shift. Therefore, h = 0.

- Vertical shift: The center of the wheel is at a height of 13 inches above the ground, so the vertical shift is also 13 inches.

Putting it all together, we get the function h(t) = 13 sin(4πt) + 13, which corresponds to option C. This function models the height of a spot on the edge of the wheel as Isabelle rides the bike. I hope this explanation helps! Let me know if you have any other questions or if there's anything else I can assist you with.

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An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with a standard deviation of 40 hours. a) if a sample of 30 bulbs has an average life of 780 hours, find a 96% confidence interval for the population mean of all bulbs produced by this firm. a) how large a sample is needed if we wish to be 96% confident that our sample mean will be within 10 hours of the true mean

Answers

The 96% confidence interval for the population mean is (764.34, 795.66) and a sample size of at least 123 bulbs is needed to be 96% confident that the sample mean will be within 10 hours of the true mean.

 

a) To find the 96% confidence interval for the population mean, we can use the formula:

CI = x ± z* (σ/√n)

where x is the sample mean, σ is the population standard deviation, n represents the sample size, and z* represents the critical value for the desired level of confidence.

From the given information, we have x = 780, σ = 40, n = 30, and we can find the critical value using a standard normal distribution table or a calculator. For a 96% confidence level, the critical value is 1.750.

When these values are entered into the formula, we get:

CI = 780 ± 1.750 * (40/√30)

CI = 780 ± 15.66

Therefore, the 96% confidence interval for the population mean is (764.34, 795.66).

b) To determine the sample size needed to be 96% confident that our sample mean will be within 10 hours of the true mean, we can use the formula:

n =[tex](z* \sigma / E)^2[/tex]

where z* is the crucial value for the desired level of confidence, standard deviation is the population standard deviation , E is the maximum error or margin of error, and n is the sample size.

From the given information, we have z* = 1.750, σ = 40, and E = 10. When these values are entered into the formula, we get:

[tex]n = (1.750 * 40 / 10)^2[/tex]

n = 122.5

Therefore, we need a sample size of at least 123 bulbs to be 96% confident that our sample mean will be within 10 hours of the true mean.

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A manufacturing company that produces laminate for countertops is interested in studying the relationship between the number of hours of training that an employee receives and the number of defects per countertop produced. Ten employees are randomly selected. The number of hours of training each employee has received is recorded and the number of defects on the most recent countertop produced is determined. The results are as follows:




Hours of Training Defects per Countertop


1 5


4 1


7 0


3 3


2 5


2 4


5 1


5 2


1 8


6 2



The estimated regression equation and the standard error are given.



Defects per Countertop = 6. 717822−1. 004950 (Hours of Training)


Se= 1. 2297787



Suppose a new employee has had 9 hours of training. What would be the 99% prediction interval for the number of defects per countertop?


Answers

We can predict with 99% confidence that a new employee with 9 hours of training will produce between -4.16 and 3.49 defects per countertop.

To find the 99% prediction interval for the number of defects per countertop for an employee with 9 hours of training, we can use the estimated regression equation and the standard error provided.

The 99% prediction interval is given by:

Predicted value ± t(0.995, n-2) x SE

where t(0.995, n-2) is the t-score for the 99% confidence level with n-2 degrees of freedom (where n is the sample size), and SE is the standard error.

First, we need to calculate the predicted value:

Defects per Countertop = 6.717822 - 1.004950(Hours of Training)

Defects per Countertop = 6.717822 - 1.004950(9)

Defects per Countertop = -0.334578

Next, we need to find the t-score for the 99% confidence level with 8 degrees of freedom (n-2 = 10-2 = 8). Using a t-distribution table or calculator, we find that t(0.995, 8) = 3.355387.

Finally, we can calculate the 99% prediction interval:

-0.334578 ± 3.355387 x 1.2297787

This simplifies to:

-4.157722 < Defects per Countertop < 3.488566

Therefore, we can predict with 99% confidence that a new employee with 9 hours of training will produce between -4.16 and 3.49 defects per countertop. However, since the lower limit is negative, it does not have practical meaning in this context. Therefore, we can conclude that we can predict with 99% confidence that a new employee with 9 hours of training will produce between 0 and 3.49 defects per countertop.

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What is the equation of a circle whose center is at the origin and whose radius is 16?x 2 + y 2 = 256x 2 + y 2 = 4x 2 + y 2 = 16

Answers

The equation of the circle with center at the origin and radius 16 is x^2 + y^2 = 256.

To find the equation of a circle with center at the origin and radius 16, we can use the general equation of a circle:

x^2 + y^2 = r^2

where (x, y) are the coordinates of any point on the circle, and r is the radius.

In this case, the center is at the origin, so the coordinates (x, y) are both 0. The radius is given as 16. Plugging these values into the equation, we have:

0^2 + 0^2 = 16^2

0 + 0 = 256

Thus, the equation of the circle is:

x^2 + y^2 = 256

So, the equation of the circle with center at the origin and radius 16 is x^2 + y^2 = 256.

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A ramp at a dog park is made of three sections. The incline and decline pieces are the same length, 13√37 inches. The center is 10√41 inches long. What is the total length of the ramp? Give your answer as a radical expression.

Answers

The total length of the ramp is 222.18 inches

How to find the total length?

Let's denote the length of the incline and decline pieces by x, and use the given information to form an equation in terms of x:

Length of incline + length of decline = 2(13√37) inches

= 26√37 inches

The total length of the ramp is the sum of the lengths of all three sections:

Total length = Length of incline + Length of center + Length of decline

Total length = 26√37 inches + 10√41  inches

Total length = 222.18 inches

Therefore, the total length of the ramp is 222.18 inches

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White shapes are black shapes are used in a game.
Some of the shapes are circles.
All the other shapes are squares.
The ratio of the number of white shapes to the number of black shapes is 7:3
The ratio of the number of white circles to the number of white squares is 2:7
The ratio of the number of black circles to the number of black squares is 1:2

Work out what fraction of all the shapes are circles.
Give your answer as a fraction in its simplest form.

Answers

23/90.


——
White Circles 2:7 has a sum of 9.
2:7 = 2/7, where the 2 is circles.
2/9 = the ratio or amount of white circles of all white shapes.

Black Circles 1:2 has a sum of 3.
1:2 = 1/2, where the 1 is circles.
1/3 = the ratio or amount of black circles of all black shapes.


Now, back to the ratio of white to black shapes 7:3. Sum: 7+3=10 shapes.
7/10, where the 7 is white and 10 is black.

Multiply the total shapes by the circle ratios:
The total number of white circles of all the shapes is (2/9) x (7/10).
This simplifies to 2*7 / 9*10 = 14/90 (don’t simplify yet).

The total number of black circles of all the shapes is (1/3) x (3/10).
This simplifies to
1*3 / 3*10 = 3/30 (don’t simplify, instead multiply by 3 for the common denominator 90). (3/30) x 3 = 9/90.

Now we have 2 fractions; one for the white circles and black circles, respectively.

Add them together: 9/90 + 14/90 = 23/90.
This doesn’t simplify further, so the fraction of the shapes that is circles = 23/90.

how long does it take light to travel to earth from sun ? the sun is 9.3 x 10 ^7mi from earth , and the light travels 1.86 x 10^5mi/s

.

Answers

It takes approximately 500 seconds for light to travel from the Sun to Earth.

To calculate the time it takes for light to travel from the Sun to Earth, we can use the formula:

time = distance / speed

Given:

Distance from the Sun to Earth = 9.3 x 10^7 miles

Speed of light = 1.86 x 10^5 miles per second

Plugging in the values into the formula, we have:

time = (9.3 x 10^7 miles) / (1.86 x 10^5 miles per second)

To simplify, we can divide the numerator and denominator by 10^5 to cancel out the units:

time = (9.3 x 10^7) / (1.86 x 10^5) seconds

Next, we can divide the numbers in scientific notation:

time = (9.3 / 1.86) x (10^7 / 10^5) seconds

Simplifying further:

time = 5 x 10^2 seconds

Therefore, light takes approximately 500 seconds to travel from the Sun to Earth.

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Solve for the missing length and the other two angles in the triangle below.

Answers

By law of cosine, the triangle has a side of 1.348 units and two angles of 129.852° and 35.148°, respectively.

How to find missing lengths and angles in a triangle

In this problem we find the representation of a triangle, in which we must determine the value of a missing side and two missing angles. This can be done by law of cosine. First, find the missing side:

x = √(3² + 4² - 2 · 3 · 4 · cos 15°)

x = 1.348

Second, find the missing angles:

4² = 3² + 1.348² - 2 · 3 · 1.348 · cos α

cos α = - 0.641

α = 129.852°

β = 180° - 15° - 129.852°

β = 35.148°

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Toby created a sculpture for art class using different-sized cubes. the smallest cube is 1.5 inches along each edge. the largest cube is 7.5 inches along each edge. how many of the smallest cubes would it take to fill the largest cube

Answers

It would take approximately 125 of the smallest cubes to fill the largest cube.

To determine the number of the smallest cubes that would fit inside the largest cube, we need to calculate the volume of both cubes.

The volume of a cube can be calculated by multiplying the length of one side by itself three times (since a cube has three equal sides). So, the volume of the smallest cube would be 1.5 x 1.5 x 1.5 = 3.375 cubic inches.

The volume of the largest cube can be calculated in the same way. The length of one side is 7.5 inches, so the volume would be 7.5 x 7.5 x 7.5 = 421.875 cubic inches.

To determine how many of the smallest cubes would fit inside the largest cube, we need to divide the volume of the largest cube by the volume of the smallest cube. So, 421.875 divided by 3.375 equals approximately 125.

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The display shows how much water is used in a household in a given day.

The bar chart is titled water usage per day in a household. There are five vertical bars: toilet represents 27 gallons, washer represents 32 gallons, shower represents 25 gallons, dishwasher represents 9 gallons, and tap represents 7 gallons.

Which of the following describes this data set?

Categorical and bivariate
Categorical and univariate
Numerical and bivariate
Numerical and univariate

Answers

The option that best describes this data set is option B: categorical and univariate.

What is the data?

Categorical data refers to data namely divided into distinct classifications or groups. In this case, the water usage dossier is divided into five categories established the sources of water habit in the household: toilet, washer, shower, dishwasher, and tap.

Therefore, the water usage basic document file is considered categorical as well as univariate, as it is divided into distinct classifications based on start of water usage and includes singular variable, that is water usage per day.

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Answer:

option B: categorial and univariate

Step-by-step explanation:

i took the test :)

hope this helps xx

Rosita is writing an explicit function for the geometric sequence:
80, 40, 20, 10, \dots80,40,20,10,…80, comma, 40, comma, 20, comma, 10, comma, dots
she comes up with t(n)=160\left( \dfrac12 \right)^nt(n)=160(
2
1

)
n
t, left parenthesis, n, right parenthesis, equals, 160, left parenthesis, start fraction, 1, divided by, 2, end fraction, right parenthesis, start superscript, n, end superscript.
what domain should rosita use for ttt so it generates the sequence?

Answers

The domain of the function is the set of all positive integers, since the sequence starts with the first term and continues indefinitely. Therefore, Rosita should use the domain of positive integers for her function to generate the given sequence.

An explicit function is a mathematical expression that directly relates an independent variable to a dependent variable. In the case of Rosita's function, t(n) represents the nth term in the geometric sequence and is dependent on the value of n, the term number.

The explicit function that Rosita came up with is t(n)=160(1/2)^n, which can be simplified to t(n)=80(1/2)^(n-1). This function represents the relationship between the term number and the corresponding value in the sequence.

To determine the domain of the function, we need to consider the values of n that generate the given sequence. Looking at the sequence, we can see that the first term is 80 and each subsequent term is half of the previous term. This means that the sequence is generated by multiplying 80 by (1/2) raised to a power. We can write this as:

80(1/2)^(n-1)

where n is the term number. The domain of the function is the set of all positive integers, since the sequence starts with the first term and continues indefinitely. Therefore, Rosita should use the domain of positive integers for her function to generate the given sequence.

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Line m is represented by the equation
y +2=
3/2(x + 4). select all equations that represent lines perpendicular to
line m.
oa.
y= -3/2x + 4
oь.
y= -2/3x + 4
oc.
y= 2/3x + 4
od.
y= 3/2x + 4
oe.
y+1= -4/6(x+5)
of.
y + 1= 3/2(x+5)

Answers

The equation oe: y + 1 = -4/6(x + 5) represents a line perpendicular to line m.

The equation of line m is given as y + 2 = (3/2)(x + 4). To determine the equations that represent lines perpendicular to line m, we need to find the negative reciprocal of the slope of line m and use it as the slope in the perpendicular lines.

The slope of line m is (3/2), so the negative reciprocal is -2/3. We can eliminate options oa, oб, and of because they do not have a slope of -2/3.

Now, let's check the remaining options:

oc: y = (2/3)x + 4

This equation has a slope of 2/3, which is not the negative reciprocal of -2/3. Therefore, it is not perpendicular to line m.

od: y = (3/2)x + 4

This equation has the same slope as line m, which means it is not perpendicular to line m.

oe: y + 1 = (-4/6)(x + 5)

Simplifying the equation, we get y + 1 = (-2/3)(x + 5), which has a slope of -2/3. Therefore, this equation represents a line that is perpendicular to line m.

Therefore, the equation oe: y + 1 = -4/6(x + 5) represents a line perpendicular to line m.

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A motorboat is headed due east, directly across a river at 5 m/s. the current of the river is 2 m/s downstream (due south). find the following: a) the resulting true speed of the boat; b) the compass direction of the boat; and c) the distance downstream the boat will land on the shore if the river is 800 meters wide.

Answers

a) The resulting true speed of the boat is approximately 5.39 m/s.

b) The compass direction of the boat is 21.8° south of east.

c) The distance downstream the boat will land on the shore if the river is 800 meters wide is 320 meters.



a) To find the true speed of the boat, we can use the Pythagorean theorem. Since the boat's speed is 5 m/s due east and the current's speed is 2 m/s due south, we can treat these as perpendicular vectors. The true speed can be found using the formula:

True Speed = √((5 m/s)² + (2 m/s)²) = √(25 + 4) = √29 ≈ 5.39 m/s

b) To find the compass direction of the boat, we can use the inverse tangent function. The angle θ can be calculated using:

θ = arctan(opposite/adjacent) = arctan(2 m/s / 5 m/s) ≈ 21.8°

Since the boat is headed east and the current is pushing it south, the true direction is 21.8° south of east.

c) To find the distance downstream where the boat will land, we first need to calculate the time it takes to cross the river. The boat's speed across the river (due east) is 5 m/s and the width of the river is 800 meters. The time taken to cross the river is:

Time = Distance / Speed = 800 m / 5 m/s = 160 seconds

Now, we can use the time to find the distance downstream by multiplying the current's speed (2 m/s) by the time:

Distance downstream = 2 m/s × 160 s = 320 meters

So, the boat will land 320 meters downstream from its starting point on the opposite shore.

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what is the vertical distance between (7, -22) to (7, 12)?
-34
-10
34
10

Answers

The vertical distance between (7, -22) and (7, 12) is 34 units.

Explanation:

We can calculate the vertical distance by finding the difference between the y-coordinates of the two points.

Vertical distance = difference in y-coordinates = 12 - (-22) = 34

Therefore, the vertical distance between the two points is 34 units.

Answer: 34.
Explanation: The vertical distance between (7, -22) and (7, 12) is 34. Since -22 and 12 are different, (-22 is a negative number, meaning it is in a different quadrant on the coordinate plane and 12 is a positive number) you have to add them together, this is the distance. Remember, distance is always positive, so negative answers are immediately incorrect. (22 + 12 = 34.) So, the distance is 34. Hope that helps!

Find the derivative of the function f by using the rules of differentiation. f(x) = 7/x^3 – 2/x^2 – 1/x + 140
f’(x) =

Answers

Since the derivative of a constant is always 0, we can drop the last term:
f’(x) = -21/x^4 + 4/x^3 + 1/x^2

Using the rules of differentiation, we can find the derivative of f(x) by taking the derivative of each term separately. The power rule and the constant multiple rule will come in handy here.

f(x) = 7/x^3 – 2/x^2 – 1/x + 140

f’(x) = d/dx(7/x^3) – d/dx(2/x^2) – d/dx(1/x) + d/dx(140)

To find the derivative of 7/x^3, we can use the power rule, which states that the derivative of x^n is nx^(n-1).

f’(x) = -21/x^4 – (-4/x^3) – (-1/x^2) + 0

To find the derivative of -2/x^2, we can again use the power rule:

f’(x) = -21/x^4 + 4/x^3 – (-1/x^2) + 0

To find the derivative of -1/x, we use the power rule once more:

f’(x) = -21/x^4 + 4/x^3 + 1/x^2 + 0

And since the derivative of a constant is always 0, we can drop the last term:

f’(x) = -21/x^4 + 4/x^3 + 1/x^2

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Solve the triangle. Round decimal answers to the nearest tenth.

Answers

The measures of the angles A = 81.2, B = 65.2, and C = 33.6 to the nearest tenth using the cosine and sine rule.

What is the cosine and sine rule?

In trigonometry, the cosines rule relates the lengths of the sides of a triangle to the cosine of one of its angles. While sine rule is a relationship between the size of an angle in a triangle and the opposing side.

Considering the given triangle, angle C is calculated with cosine rule as follows;

c² = a² + b² - 2(b)(c)cosC

14² = 25² + 23² - 2(25)(23)cosC

196 = 1154 - 1150cosC

C = cos⁻¹(958/1150)

C = 33.6

by sine rule;

14/sin33.6 = 25/sinA

sinA = (25 × sin33.6)/14 {cross multiplication}

A = sin⁻¹(0.9882)

A = 81.2

B = 180 - (33.6 + 81.2) {sum of interior angles of a triangle}

B = 65.2

With proper application of the cosine and sine rule, we have the measures of the angles A = 81.2, B = 65.2, and C = 33.6 to the nearest tenth.

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3 1 point Usually the professors give you a function and they ask you to compute the linear approximation at a given point (a, f(a)). In this particular case, I will give you already the linear approximation at 2 = 3. 5 L(x) = 121 (1 - 3) + 172. What is the value of f(3) Type your answer Previous 1 point Usually the professors give you a function and they ask you to compute the linear approximation at a given point (a, f(a)). In this particular case, I will give you already the linear approximation at I = 5, L42) = (2-6) + 23 5 4 Relate appropriately 2- 1 (9) aproximately 25.5 28 f(5)- 1.25 23 (5) 5 17) - 7 ) is approximately

Answers

The value of f(3) is 172.

The problem provides us with the linear approximation of a function at a given point. In this case, we are given the linear approximation at x=3.5 as L(x) = 121(x-3) + 172. We are asked to find the value of the original function f(3). Since 3 is to the left of the given point 3.5, we need to use the left-hand side of the linear approximation.

To find the value of f(3), we substitute x=3 in the linear approximation:

L(3) = 121(3-3.5) + 172

= 121(-0.5) + 172

= -60.5 + 172

= 111.5

Therefore, the value of f(3) is 172.

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