Divide.
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Fill in the blank(s) with the appropriate word(s).


1,660

Mathematics

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Find the volume of the described solid.The base of a solid is the region between the curve y = 5cos x and the x-axis from x = 0 to x = ?/2. The cross sections perpendicular to the x-axis are squares with diagonals running from the x-axis to the curve.

A. ?
B. 6?
C. ?
D. ?

Mathematics

Solve the problem.The amount of tin A (in square inches) needed to make a tin can with radius r inches and volume 25 cubic inches can be found by the function  Find the difference quotient when r = 2.6 in. and  Use 3.14 for ?. Interpret the result. 

A. At r = 2.6 in., A is decreasing at 26.2 in.2 per 1 in. increase in r. B. At r = 2.6 in., A is increasing at 262 in.2 per 1 in. increase in r. C. At r = 2.6 in., A is decreasing at 262 in.2 per 1 in. increase in r. D. At r = 2.6 in., A is increasing at 26.2 in.2 per 1 in. increase in r.

Mathematics

Solve the inequality, then graph the solution.-9x + 10 + 2x < 4 - 9x + 8

A. (-?, 1)

B. (11, ?)

C. (-?, 11)

D. (1, ?)

Mathematics

Suppose ABC is a right triangle with C = 90°. ?  If a = 12 and c = 15, find b.

Fill in the blank(s) with the appropriate word(s).

Mathematics