Ask question

Ask question

All categories

2 years ago

11

I need help please help

1 answer:

Aleks [24]2 years ago

8 0

What do you need help with?

You might be interested in

Can someone help me pls

Wittaler [7]

Answer:

3 cm

Step-by-step explanation:

$V_{cylinder} = 189\pi \: cm^3$ (Given)

$h_{cylinder} = 21\: cm$ (Given)

Formula for $V_{cylinder}$ is given as:

$V_{cylinder} = \pi r^2h$

$\implies 189\pi = \pi r^2(21)$

$\implies \frac{ 189\pi}{21\pi} = r^2$

$\implies 9 = r^2$

$\implies \pm\sqrt 9 = r$

$\implies \pm 3 = r$

Length of radius can not negative

$\implies r = 3 \: cm$

Hope it helps you in your learning process.

8 0

2 years ago

Read 2 more answers

What is 1 and 5/6 as a decimal?

balandron [24]

Answer: 1.83

Step-by-step explanation:

Hope this helps!

8 0

3 years ago

What is the slope of the line that passes through the points (-2,7) and (2,-5) in simplest form ?

creativ13 [48]

Its $m=\dfrac{\Delta y}{\Delta x}=\dfrac{7-(-5)}{-2-2}=\dfrac{12}{-4}=\boxed{-3}$ .

Hope this helps.

6 0

3 years ago

A system of 2 linear equations is ___ dimensional. It is a graph of _____ lines. The solutions can be _____ solution if the grap

melamori03 [73]

/algebra/linear s is ___ dimen

8 0

3 years ago

Use the distributive property to write an equivalent expression: -(n+4)*

stealth61 [152]

Answer: -n-4

Step-by-step explanation:

Distribute the - to n and 4

6 0

3 years ago