Solve.A cruise boat travels 72 miles downstream in 3 hours and returns to its starting point upstream in 12 hours. Find the speed of the stream.
A. 24 mph
B. 9 mph
C. 39 mph
D. 15 mph
Answer: B
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Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = x2i + y2j + zk; D: the solid cube cut by the coordinate planes and the planes x = 1, y = 1, and z = 1
A. 1 B. 4 C. 3 D. 2
Solve the problem.How close does the semicircle y = 
come to the point (1, 
)?
A. x = 1.55 B. x = 2.45 C. x = 0.45 D. x = 2.00
Evaluate. Round dollar amounts to the nearest cent and other answers to the nearest thousandth when necessary.130ert for t = 6 and r = 2%
A. $181.43 B. $2611.12 C. $146.57 D. $353.38
Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1