Step-by-step explanation:

It should be 78.54.
Double check that.
Formula: V=πr2h/3
r2 is R squared
Answer:
y = -2x +20
6x - 5y = 12
Put the value of y in 2nd equation
6x - 5( -2x +20 ) = 12
6x +10x -40 = 12
16x = 12 +40
16x = 52
x = 13/4
Putting the value of x in equation 1
y = -2x +20
y = -2(13/4 ) +20
y = 27/2
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Answer:
Q?
Step-by-step explanation:
False is the correct answer