Ask question

Ask question

All categories

3 years ago

8

A cone has volume of 12 pie cubic units. its height is 4 inches. what is its radius

1 answer:

harkovskaia [24]3 years ago

6 0

V=pi*r^2*h*1/3

12pi=pi*r^2*4/3

R needs to be equal to 3 to be squared into 9 to make the equation true.

So the radius is 3 inches.

I hope this helps!

You might be interested in

Two angles are supplementary. One angle has a measure of 44 degrees. What is the measure of the other angle?

xxMikexx [17]

If A and B are supplementary angles, then:
A+B=180º

In this case:
A=44º

44º+B=180º
B=180º-44º=136º

Anser: the measure of the other angle is 136º

7 0

3 years ago

Which mumber is between point s and point t on the mumber line? 3 4 5 6 7

kondor19780726 [428]

5or 6 I don't remember

3 0

3 years ago

Round 10.999244792948 to the nearest whole number

Mariana [72]

Answer:

11

Step-by-step explanation:

1. Listing Information

The number is 10.999244792948.

Simply put, numbers below 5 are rounded down and numbers that are greater than or equal to five are rounded up.

The tenths place value in 10.999244792948 is 9.

2. Solving the Problem

With the previous information in mind, 9 is greater than 5. Because of this, 10.999244792948 should be rounded to 11.

3 0

4 years ago

It takes three identical water pumps 8 hours to fill a pool, What is the constant of variation?

BaLLatris [955]

Answer:

Constant of variation is 24.

Step-by-step explanation:

Inverse variation states that a relationship between two variables in which the product is remain constant.

If one variable increases then, the other one decreases in proportion so that the product is unchanged,

if y is inversely proportional to x i.e $y \propto\frac{1}{x}$ or

$y =\frac{k}{x}$ ;where k is the constant of variation.

It is given that 3 identical water pumps takes 8 hours to fill a pool,

since, it will take less time with more pumps, so it is an inverse variation.

By definition of inverse variation;

$time = \frac{k}{pump}$

Substitute the values to solve for k;

$8 = \frac{k}{3}$

Multiply by 3 to both sides we get;

$8 \times 3 = \frac{k}{3} \times 3$

Simplify:

k = 24

Therefore, the constant of variation is, 24

3 0

3 years ago

Find x to the nearest tenth

jeka57 [31]

Answer:

x=30.6

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers