Evaluate or simplify the given expression.cos (cot-1 x)
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the volume of the indicated region.the region bounded by the coordinate planes, the parabolic cylinder 
, and the plane 
A. 500
B. 375
C. 
D. 
Mathematics
Use the vertical angle property to find the indicated angle measures.In the figure, m?5 = 62° and m?6 = 70°. Find m?1, m?2, m?3, and m?4.
A. m?1 = 62°; m?2 = 62°; m?3 = 70°; m?4 = 70° B. m?1 = 48°; m?2 = 62°; m?3 = 70°; m?4 = 48° C. m?1 = 62°; m?2 = 48°; m?3 = 70°; m?4 = 48° D. m?1 = 48°; m?2 = 70°; m?3 = 62°; m?4 = 48°
Mathematics
Divide. Write the answer in lowest terms.
÷ 
A. 
B. 1024k
C. 
D. 
Mathematics
Solve.The formula for distance is d = rt. If the rate of speed, r, is 8 miles per hour and the time traveled, t, is 6 hours, find the distance.
A. d = 48 mi B. d = 0.2 mi C. d = 56 mi D. d = 40 mi
Mathematics