Find the unknown length in the right triangle. Simplify the answer if necessary.
A. b = 27
B. b = 37
C. b =42
D. b = 36
Answer: D
Mathematics
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Verify the integration formula.
ln x tanh-1 (ln x) + 
ln (1 - (ln x)2)+ C
A. Yes B. No
Mathematics
Solve the problem.Suppose that the accompanying table shows the velocity of a car every second for 8 seconds. Use the Trapezoidal Rule to approximate the distance traveled by the car in the 8 seconds. Round your answer to the nearest tenth if necessary.
A. 257.5 ft B. 169.5 ft C. 189 ft D. 339 ft
Mathematics
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = (y-x)i + (z-y)j + (z-x)k ; D: the region cut from the solid cylinder x2 + y2 ? 9 by the planes z = 0 and 
A. -72 B. 72? C. 0 D. -72?
Mathematics
Find the distance between P and Q.P(1, -1), Q(-11, -6)
A. 14 B. 169 C. 26 D. 13
Mathematics