Hello!
First you have to find the volume of the cylinder
To find the volume of a cylinder you use the equation

V is volume
r is radius
h is height
Put in the values you know and 3.14 for pi

Square the number
V = 3.14 * 9 * 7
Multiply
V = 197.82
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Next you find the volume of the sphere
To find the volume of a sphere you use the equation

V is volume
r is radius
Put in the values you know and 3.14 for pi

Cube the number

Multiply
V = 113.04
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Finally you subtract the two volumes from each other
197.82 - 113.04 = 84.78
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The answer is C)84.78
Hope this helps!
X = 4.
You have to distribute by multiplying -4 by the numbers between -3x and -2.
12x + 8 =60
Subtract the 8 from 60 to simplify the equation.
12x = 48
Divide 12 by 48 and get 4.
x=4
Answer: Choice B) -3
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Work Shown:
f(x) = (x+2)/2
f(-8) = (-8+2)/2 ... replace every x with -8; use PEMDAS
f(-8) = (-6)/2
f(-8) = -3
Answer:
Terms are the things that are separated by a (+) or a (-).
Step-by-step explanation:
<u>16x^3</u> - <u>4x^2</u> -4x+1
I don't think I'm right...