All categories

3 years ago

Please help I'm so confused

Mathematics

1 answer:

alex41 [277]3 years ago

4 0

Answer:

Step-by-step explanation:

V = 1/3 pi r^2 h Multiply both sides by 3

3V = pi r^2 h Divide by pi * h

$\frac{3*V}{\pi * h}$ = r^2 Take the square root

$\sqrt{\frac{3V}{\pi*h} }$ = r

You might be interested in

I really need help, please? :)

son4ous [18]

124* or 56* good luck

6 0

3 years ago

Which of the following is a step in evaluating: ∫ cos2 5x dx

Sav [38]

From the following choices, the correct step in evaluating: ∫ cos2 5x dx is 1 - cos 10x / 2dx.

4 0

3 years ago

Triangle ABC is an isosceles triangle, and side BC is congruent to side AC. If side AC equals 40 centimeters, and AB is one-half

Alik [6]

Answer:

100 cm

Step-by-step explanation:

Given:

AC = BC

AC = 40

2AB=AC

Simplify:

BC = 40

Simplify:

2AB = 40

Algebra:

AB = 20

Here's the sides:

AB = 20

AC = 40

BC = 40

Add all of them together:

100

8 0

3 years ago

Simplify x²-49/3x+21

Vera_Pavlovna [14]

First, you factor and simplify (respectively) the numerator and denominator. Your equation becomes:

$\frac{(x-7)(x+7)}{3(x + 7)}$

Notice, there is a (x + 7) on both the top and the bottom. Because of this, they cancel each other out. What is left is your answer:

$\frac{(x-7)}{3}$

3 0

3 years ago

Read 2 more answers

The graph shows how many cans of each type of cat food were sold one day. (View picture)

sleet_krkn [62]

It's very easy!
.
First of all, add up all the amounts of all can flavors.
.
What do you think it approximates to?
.
I'd say 245.
.
Now, how much is 30 out of 245?
.
Around 24%.
.
So, what's 245/100? (100 because it is default maximum percentage number)
<span>.
</span>2.45.
.
24 divided by 2.45?
.
Around 9%.
.
Your best guess is 10% or D.

3 0

3 years ago