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. 
?
C. 6?
D. 
?
Answer: D
Mathematics
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Replace the variable as indicated and decide whether the given number is the solution.6 = b ? 2; replace b with 3
A. 6 = 6; Yes B. 4 = 6; No
Mathematics
If (a, b, c) is a Pythagorean triple, then so is:
(a) (3a, 4b, 5c). (b) (3a, 3b, 3c). (c) (6a, 6b, 6c). (d) Both (a) and (b) are correct. (e) Both (b) and (c) are correct.
Mathematics
Write the number in scientific notation.0.00000018003
A. 1.8003 × 10-6 B. 1.8003 × 10-7 C. 1.8003 × 107 D. 1.8003 × 106
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics