Set up an integral for the length of the curve.y = 2 cot x, 
? x ? 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Factor the trinomial completely.15z2 - 8z - 16
A. (15z - 4)(z + 4) B. (3z + 4)(5z - 4) C. (3z - 4)(5z + 4) D. (15z - 4)(z - 16)
Mathematics
Change the order of integration and evaluate the integral.
A. 7896?3 B. 5208?3 C. 10,584?3 D. 2520?3
Mathematics
Use a calculator to find an approximation to the nearest ten-thousandth.log 0.52
A. -0.6539 B. -0.1539 C. -0.784 D. -0.284
Mathematics
Use these sets to find the following. Identify any disjoint sets.Let U = {5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}, M = {5, 7, 9, 11}, 
and 
(N ? R) ? Q
A. {5} B. ?; N and R are disjoint sets. C. {5, 7} D. {7}
Mathematics