Answer:
Step-by-step explanation:
V = 1/3 * pi * r^2 * h
r = ?
pi = 3.14
h = 17 cm
3*V = pi * r^2 h = r^2 Divide by pi
3*V/pi = r^2 h = r^2 Divide by h
3*V/(pi*h) =r^2 Take the square root of the left to get just r
sqrt(3*V/(pi*h)) = r Now solve the equation.
sqrt(3*538.25 /(3.14*17)) = r
sqrt(1614 / 53.38) =
r = sqrt(30.24)
r = 5.493
Answer:
Step-by-step explanation:
120 degrees is one third of the whole circle, or 
For 6 hours charges $330
for 9 hours charges x
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x = 9*330/6 = 495 so choice C. is right
Answer: <em>y = 2x − 4</em>
The correct answer is <em>B)</em> <em>y = 2x − 4</em>
Step-by-step explanation:
<u>Move all terms that don't contain y to the right side and solve:</u>
<em>y = −4 + 2x</em>
<u>Then reorder −4 and 2x:</u>
<em>y = 2x − 4</em>
<u>Final answer is:</u>
<em>B) y = 2x − 4</em>
