Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by the triangle with vertices (4, 0), (4, 2), (6, 2)
A. 
?
B. 
?
C. 
?
D. 
?
Answer: B
Mathematics
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Find a rectangular equation for the curve and describe the curve.x = 4 cos t, y = 4 sin t; -? ? t ? ?
A. x2 + y2 = 4; circle with radius 4 B. x2 + y2 = 16; portion of a circle with radius 4 C. x2 + y2 = 16; circle with radius 4 D. x2 + y2 = 16; ellipse
Mathematics
Evaluate the expression.-(-3)2
A. 9 B. -9 C. 6 D. -6
Mathematics
List the critical values of the related function. Then solve the inequality.x - 3 > 
A. 
, 0, 
; 
? 
B. 
, 
; 
? 
C. 
, 0, 
; 
? 
D. No critical values; ?
Mathematics
Write the answer to the problem as an algebraic expression.A water tank holds G gallons. Since there are 4 quarts per gallon, how many quarts does the tank hold?
A. 
quarts
B. 4G quarts
C. G + 4 quarts
D. 
quarts
Mathematics