Please help me solve this thanks

Please Help Me Solve This Thanks

Answers

Answer 1

Answer:

A

Step-by-step explanation:

let r represent rate and d distance.

Given that r varies directly as d² then the equation relating them is

r = kd² ← k is the constant of variation

To find k use the condition r = 4 when d = 15, then

4 = k × 15² = 225k ( divide both sides by 225 )

k = [tex]\frac{4}{225}[/tex]

r = [tex]\frac{4}{225}[/tex] d²  ← equation of variation

When r = 9, then

9 = [tex]\frac{4}{225}[/tex]d² ( multiply both sides by 225 )

2025 = 4d² ( divide both sides by 4 )

506.25 = d² ( take the square root of both sides )

d = [tex]\sqrt{506.25}[/tex] = 22.5 = 22 [tex]\frac{1}{2}[/tex] → A


Related Questions

Use the number line to determine which of the following statements is true. Each tick is 1 unit. The quotient of P and S is positive. The absolute values of Q and R are the same. Q and S are opposite numbers. The product of R and S is negative.

Answers

Answer:

The absolute values of Q and R are the same

Step-by-step explanation:

Hope this helps! I had the same question lol

The absolute values of Q and R are the same option (B) is correct after applying the arithmetic operation.

What are arithmetic operations?

The study of numbers and their operations, which are relevant to all other fields of mathematics, is part of the discipline of arithmetic operations. Addition, subtraction, multiplication, and division are the basic operations that make up this system.

It is given that:

A number line is shown in the picture.

From the number line:

= 4/2=2

The absolute values of Q and R are the same.

Thus, the absolute values of Q and R are the same option (B) is correct after applying the arithmetic operation.

Use the number line to determine which of the following statements is true. Each tick is 1 unit.

The quotient of P and S is positive.

The product of R and S is negative.

The absolute values of Q and R are the same.

Q and S are opposite numbers.

Learn more about the arithmetic operations here,

brainly.com/question/25834626

#SPJ2

Recycled​ CDs, Incorporated, offers a choice of 5 used CDs for ​$23 with each additional CD costing ​$3 Write a cost function for purchasing 5 or more CDs. What will the cost of buying 10 Ds​ be? Let x represent the number of CDs over 5

Answers

Answer:

-f(x)=23+3x

-The cost of buying 10 CDs will be $38.

Step-by-step explanation:

From the information given, the cost function for purchasing 5 or more CDs has to indicate that you would pay 23 plus the result of multiplying 3 for the number of CDs over 5:

f(x)=23+3x, where:

x represents the number of CDs over 5

Using this function you can determine the cost of buying 10 CDs:

x would be equal to 5 that is the number of CDs over 5 when you buy 10 CDs:

10-5= 5

Now, you can replace the value of x:

f(x)=23+(3*5)

f(x)=23+15=38

According to this, the cost of buying 10 CDs will be $38.

1. In the expression 9x-11.9 is a coefficient

Answers

Answer:

9 is a coefficient

Step-by-step explanation:

9x-11.9

A coefficient is the number in front of the variable

9 is a coefficient and -11.9 is a constant

Use the Distributive Property to multiply 9 and 37 in your head
What is the answer?

Answers

Answer:

270 + 63 = 333

Step-by-step explanation:

If you did it in your head, it would look like this:

9(30) + 9(7)

270 + 63 = 333

Two equations are shown. Equation 1: -0.5x-4=1.5 Equation 2: -0.5(x-4)=1.5 Select each statement that must be true. PLZ HELP ME!

Answers

Answer:

Equation 2 is correct

Step-by-step explanation:

Equation 1 is 2, not 1.5

Answer: C and D

Step-by-step explanation:

The value of c in the first one is less then the value of the second one. Also equation 1 equals -11 and equation 2 equals 1 so that’s why it’s c and d.

What is f(x) times g(x)

Answers

Answer:

[tex]fg {x}^{2} [/tex]

Step-by-step explanation:

f(x) × g(x)

[tex]fg {x}^{2} [/tex]

it is not easy to explain but i hope u like it ‍❤️‍‍❤️‍‍❤️‍

For any question comment me

look at image. reflection across x=-1 ​

Answers

Answer:

U 0,-2    S -2,-1   T -3 -5  will be the new points

Step-by-step explanation:

Someone please help me! I only have one attempt left.

Answers

Answer:

x=18

Step-by-step explanation:

10x-4+x-14=180

11x-18=180

11x=180+18

11x=198

x=[tex]\frac{198}{11}[/tex]

x=18

Answer:

x = 18

Step-by-step explanation:

(10x -4) + (x-14) = 180 (for linear pair)

<=> 10x + x - 4 - 14 = 180

<=> 11x - 18 = 180

<=> 11x = 180+18 = 18 . 10 + 18 = 18 . 11

<=> x = 18

The noontime temperature was 29°F. This was 4°F lower than predicted. Write and solve an equation to determine the predicted noontime temperature

Answers

Answer:

29x-4

Step-by-step explanation:

The endpoints of EF
are E(1,3) and F(-2,8).
Find EF.

Answers

Answer:

EF = [tex]\sqrt{34}[/tex] ≈ 5.83

Step-by-step explanation:

Calculate EF using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = E(1, 3) and (x₂, y₂ ) = F(- 2, 8)

EF = [tex]\sqrt{(-2-1)^2+(8-3)^2}[/tex]

    = [tex]\sqrt{(-3)^2+5^2}[/tex]

    = [tex]\sqrt{9+25}[/tex]

    = [tex]\sqrt{34}[/tex] ≈ 5.83 ( to 2 dec. places )

7. If f(x) = x2 – 3x, what is f(5)?
a. 4
b. 8
C. 10
d. 16

Answers

The answer is 10, so it would be C

Answer: C

Step-by-step explanation:

this is only the answer if the x is squared

plug 5 in for x

(5)^2-3(5)

25-15= 10

What does "when x is an integer" mean?

Answers

Answer:

x = whole-valued numbers without fractions or decimal.

Step-by-step explanation:

An integer in mathematics refers to a whole number that can either be a positive or negative number but without any fractional part. Integers are numbers such as -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 etc.

Hence, when we say "x" is an integer, it simply means that the value of x should be a whole number that can either be a positive or negative number but without any fractional or decimal value or part.

In Mathematics, when solving for an unspecified or unknown integer we can use a lowercase alphabet "x" to denote the integer.

For instance;

2x + 5 = 11

2x = 11 - 5

2x = 6

Dividing both sides by 2, we have;

x = 3.

Jan noticed that she has four times as many dimes as quarters. She has one more nickel than dimes. The
coins totaled $6.00. How many dimes does Jan have?

Answers

Answer:

Jan has 28 dimes.

Step-by-step explanation:

It would take 24 quarters or 60 dimes or 120 nickels to make $6.

So, I simply divided 24 by 3, which is 8 (but I did 7).

7 quarters is 1.75, and 28 dimes make 2.80, and 29 nickels make 1.45

1.75 + 2.80 + 1.45 = $6

5y>=75 can someone give me the answer and write how they did it?

Answers

Answer:

The answer is y = 15 (I'm pretty sure)

Step-by-step explanation:

Simplifying

5y = 75

Move all terms containing y to the left, all other terms to the right.

Divide each side by '5'.

y = 15

Simplify

y = 15

Answer:

y≥15

Step-by-step explanation:

5 times 15 = 75 so, y= y≥15

What is the solution to the proportion? Round the answer to the nearest tenth if necessary. StartFraction 52 over x EndFraction = StartFraction 9.5 over 3.25 EndFraction x = 14.6 x = 17.8 x = 157.8 x = 169.0

Answers

Answer: 17.8

Step-by-step explanation:

The solution to the proportion would be x = 17.8 which is the correct option (B).

What is Ratio?

A ratio is defined as a relationship between two quantities, it is expressed as one divided by the other

What are Arithmetic operations?

Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operations is called the arithmetic operator.

/ Division operation: Divides left-hand operand by right-hand operand

For example 4/2 = 2

We have been the given proportion as:

⇒ 52 : x = 9.5 : 3.25

⇒ 52/x = 9.5/3.25

⇒ 52/x = 2.923

Cross multiplication, and we get

⇒ x = 52/2.923

Apply the division operation,

⇒ x = 17.8

Therefore, the solution to the proportion would be x = 17.8.

Learn more about the Ratio here:

brainly.com/question/1504221

#SPJ5

The original price of a pair of shoes is $36.00. Edward buys the shoes for 13% off its original price. Two weeks later Chad buys the same shoes for 29% off its original price. How much more money did Edward spend than Chad on the shoes?

Answers

Answer:

$6.06

Step-by-step explanation:

Edward: 36.00*0.87=31.32

Chad 36.00*0.71=25.25

31.32-25.25=6.06

$6.06

Hope this helps :-)

$6.06 is the answer

Find negative square root of 36.

Answers

Answer:

The positive and negative square roots of 36 are 6 and −6 .

root of -36=-6

root of 36=6

plZz mark brainliest

composite numbers greater than 10 but less than 20

Answers

Answer:

10, 12, 14, 15, 16,18,20

Step-by-step explanation:

A composite number is a positive integer. which is not prime (i.e., which has factors other than 1 and itself)

Hav a nice day

Happy if i get brainliest

The composite numbers greater than 10 but less than 20 will be 10, 12, 14, 15, and 16,18,20.

What is the number?

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that, composite numbers must be greater than 10 but less than 20

An integer that is positive and not prime is a composite number. The first few composite numbers are 4, 6, 8, 9, 10, 12, 14, and 15 commonly abbreviated as "composites"

In all areas of mathematics, including shape, measurement, quantifying quantities of objects, and computation, composite numbers are applied.

To put it simply, odd composite numbers are all odd numbers that are not prime numbers. For illustration, use 9, 15, 21, etc.

Thus, the composite numbers greater than 10 but less than 20 will be 10, 12, 14, 15, and 16,18,20.

Learn more about the number here:

brainly.com/question/17429689

#SPJ2

A stocks value decreased by 7 points each day for 2 weeks. Which numeric expression can be used to find out what the stock value was after the 2 weeks?

Answers

Answer:

x - 98

Step-by-step explanation:

Given the question :

A stocks value decreased by 7 points each day for 2 weeks. Which numeric expression can be used to find out what the stock value was after the 2 weeks?

Let the initial value of the stock = s

Rate of decrease = 7 points per day

Number of days in a week = 7

Hence, 2 weeks = ( 2 * 7) = 14 days

Total decrease in stock over the 2 weeks period :

(Decrease per day × number of days)

(7 points × 14) = 98 points

Stock value after 2 weeks :

(Initial stock value - decrease in stock over the 2 weeks period)

= x - 98

A 32 ounce soft drink costs $1.83. Approximately what is the price per ounce

Answers

Step-by-step explanation:

divide 32 by 1.83 to get the answer

the answer is 17.4863387978

round it off

the final answer should be:

17.5 cents

The price per ounce is approximately 5.72 cents per ounce.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

Given that,

A 32-ounce soft drink costs $1.83.

So,

32 ounce ⇒  $1.83

Divide by 32 into both sides

1 ounce ⇒ 1.83/32

1 ounce ⇒ $0.0571875 = 5.72 cents.

Hence"The price per ounce is approximately 5.72 cents per ounce".

For more information about ratio and proportion,

brainly.com/question/26974513

#SPJ2

Sally shot her bow and arrow straight up into the air and she found the maximum height that her arrow reached was 30ft , but she wants to know how long it took to get there , what does she need to find ?

Answers

Answer:

Sally would need two kinematic equations and know the values of gravitational acceleration to obtained the time taken by the arrow to reach maximum height.

Step-by-step explanation:

Sally shot her bow and gravity influences entirely on the motion of the bow, since distances are to small with respect to the radius of the Earth, gravitational acceleration can be considered constant. When arrow reaches maximum arrow, final velocity is zero. In consequence, the position of the arrow can be expressed in terms of the following kinematic equations:

[tex]y - y_{o} = v_{o}\cdot t +\frac{1}{2} \cdot g\cdot t^{2}[/tex]

[tex]0 = v_{o}+g\cdot t[/tex]

Where:

[tex]y_{o}[/tex], [tex]y[/tex] - Initial and final height of the arrow, measured in feet.

[tex]v_{o}[/tex] - Initial velocity, measured in feet per second.

[tex]g[/tex] - Gravitational acceleration, measured in feet per square second.

[tex]t[/tex] - Time, measured in seconds.

In consequence, Sally would need two kinematic equations and know the values of gravitational acceleration to obtained the time taken by the arrow to reach maximum height.

Select the product that shows the correct placement of the decimal point
30.76
x 0.08
0 2.4608
0 24.608
X 246.08
2460.8

Answers

Answer:

0 2.4608

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

hope this helps

trust me

Solve for x: -1 < x + 3 < 5 ​

Answers

Answer:

[tex]x=-4<x<2[/tex]

Step-by-step explanation:

[tex]-1<x+3<5[/tex]

This inequality consists of 3 parts.

To solve this inequality, you will have to add -3 in each part of the inequality.

[tex]1+-3<x+3+-3<5+-3[/tex]

The answer to this is:

[tex]-4<x<2[/tex]

So that means x is equal to

[tex]x=-4<x<2[/tex]

Hope this helps!

How do you add and subtract intergers.

Answers

Answer:

Add a positive integer by moving to the right on the number line.

Subtract an integer by adding its opposite.

Step-by-step explanation:

Step-by-step explanation:

1, Add a positive integer by moving to the right on the number line.

2, Add a negative integer by moving to the left on the number line.

3, Subtract an integer by adding its opposite.

A store is having a sale on hats. The sale is buy one hat, get one 50% off. The original price of one hat is $24.98. Cole bought several hats, and the total cost was $99.92 , How many hats did cole buy ?

Answers

Answer:

8 hats

Step-by-step explanation:

1. .50 x 24.98

2. 12.49 x 8

3. solve 12.49 x 8

4. Equals 99.92

Hope this helps you an stay safe:)

how to do this question plz ​

Answers

Answer:

8

Step-by-step explanation:

Gradient = Slope

In y = mx + b

m is the gradient of the straight line

[tex]gradient = 8[/tex]

Which statement correctly describes the translation of trapezoid P to create the image

Answers

Answer:

C. 8 units to the right and 5 units down

Step-by-step explanation:

Because if we move the trapezoidal to the right 8 times, then 5 units down. It becomes the image need it needs to be.

I hope this helps! I'm sorry if it's wrong.

HELP! I'LL MARK BRAINLEST!! Write a story that matches the expressions and equation shown on the left. Then solve the equation and find each person’s age.

Answers

Answer:

Felipe is "F" years old, Felipe's sister is 6 years younger then Felipe, Felipe's mom is times minus 6

Step-by-step explanation:

r+(-8) = 10
Can someone help me ?

Answers

this should be the right answer

if f(x) = 5x + 40, what is f(x) when x= -5

Answers

All we need to do is substitute and solve:

f(-5) = 5(-5) + 40

f(-5) = -25 + 40

f(-5) = 15

Best of Luck!

Other Questions
What value of q makes the equation true? -8=32-5q I need help with 25. 26. And 27 plz I dont know how 8x + 4 = 3 (x-1) + 7' A manager of a taco stand is interested in advertising to get more lunch time customers, but doesnt know how much time it takes to process a single customer. The amount of time it takes to process a single customer will help the manager determine the maximum amount of customers they can process in the lunch hour. On average during lunch hour there are 12 people in line to approach the window. 4 people per minute leave the taco stand after receiving their food.Fill in the blanks below.I =________R =_______On average how long do customers wait in line? Calculate you answer in minutes. (Enter the value only. Do not enter text.) The speed of a bus increases uniformly from15 ms- to 60 ms in 20 seconds. Calculatea. the average speed,b. the acceleration,C. the distance travelled during the entireperiod The speed of a bus increases uniformly from15 ms- to 60 ms in 20 seconds. Calculatea. the average speed,b. the acceleration,C. the distance travelled during the entireperiod 18x + 3y = -21 slope intercept form Which quadrilateral is the result of rotating quadrilateral ABCD 270 clockwise about the origin my noob has 36 apples he puts 29 in a bag how much he has now 2-11 Ozone molecules are constantly formed and destroyed in the atmosphere. Apicture (cartoon) showing how ozonemolecules are formed is shown below.0-02A family member of yours who has never studied about this tries to understandthe cartoon pictures but is unable to understand it. He knows that there are nosuch living forms in atmosphere but he is not able to understand names like 0,02and O, and also theprocess explained.How would you explain it to that family member? State in your own words. Complete the sentences Wit the vernos below. Ayuda porfavor :'c The length of a rectangle is twice the width. The area is 72 yd^2. Find the length and the width. How does Judaism contribute to democraticideals? While Felicia is stirring her hot coffee with a metal spoon, she gets called away. She sets the coffee on the desk and then forgets to come back for it before going home for the weekend. How long will conduction between the spoon and the hot coffee occur? Conduction will occur until the spoon is hotter than the coffee. Conduction will occur until the spoon is at room temperature and the coffee gets cold. Conduction will occur until the spoon is removed from the coffee after the weekend. Conduction will occur until the spoon and coffee are the same temperature. What is the function of the prepositional phrase "on the corner" in this sentence?Just so you know, the arcade on the corner gives free pinball credits if you buy a slice of pizza.. It answers the question "What does the arcade give for free?"O It modifies the verb gives.O It helps clarify the subject Just so you know.o It modifies the noun arcade. 3. of the seven features of democracy, which one was failed to be met in the 1789presidential election because the president ran unopposed? Someone please help me with this geometry proof question ASAP! ____ region has the maximum concentration of iron and steel industries Raymond and Julie ar driving to Santa Barbara.They drive at an average speed of Bomon for2.5 hours before he stopping for lunch. Htakes them 30 minutes to eat. After lunchthey continue driving or an average speedof so mon for 3.0 nono . What is theiraverage speed, in milesfor the3.5entiveHIDper hour Norah's hours worked and corresponding total earnings are shown in thegraph. What would Norah's total earnings be if she worked 11 hours? Hint:What is her hourly rate?Total earnings40302010403Hours workedA. $440B. $110 C. $220D. $330 What are the roots of the equation 4x^2 + 16x + 25 = 0 in simplest a + bi form?