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3 years ago

Need help with this 1 math problem.

Mathematics

1 answer:

Tatiana [17]3 years ago

7 0

Answer:ok

Step-by-step explanation:

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Help me with this pleaae

marissa [1.9K]

Answer:

(D) 30pi inches

Step-by-step explanation:

First, we use the given volume, the given height, and the formula of the volume of a cylinder to find the radius of the base. Then we use the radius of the base to find the circumference of the base.

$volume = \pi r^2 h$

$volume = 6750 \pi~in.^3$

We set the formula equal to the volume and replace h with 30 in.

$\pi r^2 h = 6750 \pi~in.^3$

$\pi r^2 \times 30 ~in. = 6750 \pi~in.^3$

Divide both sides by 30pi in.

$r^2 = 225 ~in.^2$

Take the square root of each side.

$\sqrt{r^2} = \sqrt{225 ~in.^2}$

$r = 15~in.$

The radius of the base is 15 in.

Now we use the radius of the base and the formula of the circumference of a circle to find the answer.

$circumference = 2 \pi r$

$circumference = 2 \pi \times 15~in.$

$circumference = 30 \pi ~in.$

6 0

3 years ago

The work of a student to solve the equation 4(2x − 4) = 8 + 2x + 8 is shown below:

Contact [7]

Step 2...first error...when distributing through the parenthesis, u multiply, not add.

4(2x - 4) = 8 + 2x + 8 =
8x - 16 = 16 + 2x <== correction

5 0

3 years ago

1 kilometer 125 meters

Natalija [7]

How is this a question i don’t understand

5 0

2 years ago

Read 2 more answers

You have a credit card that has a balance of $7590 at an APR of 21.99 % . You plan to pay $400 each month in an effort to clear

cricket20 [7]

Answer:

Step-by-step explanation:

7 0

3 years ago

A pizza place offers 4 different cheeses and 10 different toppings. In how many ways can a pizza be made with 1 cheese and 4 top

mylen [45]

Answer:

Step-by-step explanation:

Assuming the toppings don't have to be the same

4*10*10*10*10=4000

If the toppings have to be different:

4*10*9*8*7=20160

8 0

3 years ago

Need help with this 1 math problem.​

Need help with this 1 math problem.