Simplify the expression. Assume that all variables represent positive real numbers.
-3/5
A. x33/5y24/5
B. x9/5y9
C. x84/5y24/5
D. x9/5y24/5
Answer: D
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Use a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the rectangular solid 
, 
, 
A. 216 B. 288 C. 1296 D. 432
Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 0; local maximum at x = 2; concave up on (0, ?); concave down on (-?, 0) B. Local minimum at x = 2; local maximum at x = 0; concave down on (0, ?); concave up on (-?, 0) C. Local minimum at x = 0; local maximum at x = 2; concave down on (0, ?); concave up on (-?, 0) D. Local minimum at x = 2; local maximum at x = 0; concave up on (0, ?); concave down on (-?, 0)
Use a calculator to help solve the equation. Round approximate answers to three places.(1.64 × 104) x + 5.4 × 103 = 8.7 × 102
A. {0.498} B. {0.382} C. {-0.276} D. {-0.498}
Write a recursion formula for the sequence.
, 10, 100, 10,000, . . .
A. an = 10an-1, a1 = 
B. an = 
, a1 = 
C. an = (an-1)2, a1 = 
D. an = 
, a1 = 