Solve the problem.For a cone, the formula R = 
1/2describes the relationship between the radius R of the base, the volume V, and the height h. Find the volume of a cone if its radius is 7 inches and its height is 5 inches. (Use 3.14 as an approximation for ?, and round to the nearest tenth.)
A. 256.4 cubic in.
B. 36.6 cubic in.
C. 51.3 cubic in.
D. 2307.9 cubic in.
Answer: A
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Solve the problem by integration.Find the x-coordinate of the centroid of the area bounded by 
and 
A. 2.09 B. 8.11 C. -2.09 D. 1.35
Find the volume of the solid generated by revolving the shaded region about the given axis.About the y-axis
A. 
?
B. 
?
C. 
?
D. 14?
The earth rotates through one complete revolution every 1,440 minutes. Since the axis of rotation is perpendicular to the equator, you can think of a person standing on the equator as standing on the edge of a disc that is rotating through one complete revolution every 1,440 minutes. Find the angular velocity of a person standing on the equator. ? If the answer needs rounding, round it to five decimal places. ? __________ rad/min
What will be an ideal response?
Multiply the polynomial functions.f(x) = 2 - 1; g(x) = 4x2 + 2x + 1
A. (fg)(x) = 4x3 - 1 B. (fg)(x) = 8x3 + 1 C. (fg)(x) = 8x3 - 1 D. (fg)(x) = 8x3 + 6x2 - 1