Solve the problem.A pilot wants to fly on a bearing of N 63.5° E. By flying due east, he finds that a 51-mph wind, blowing from the south, puts him on course. Find the ground speed of the plane.
A. 229 mph
B. 171 mph
C. 57 mph
D. 114 mph
Answer: D
Mathematics
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Express the integrand as a sum of partial fractions and evaluate the integral.
A. 1.34 B. -0.67 C. 0.67 D. 1.09
Mathematics
Find the product.75% of 400
A. 30 B. 300 C. 3000 D. 3
Mathematics
Solve.One pump can drain a pool in 12 minutes. When a second pump is also used, the pool only takes 7 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 79 min
B. 16
min
C. 
min
D. 4
min
Mathematics
Solve the problem.How many ways can a president, vice-president, secretary, and treasurer be chosen from a club with 9 members? Assume that no member can hold more than one office.
A. 126 B. 3024 C. 36 D. 24
Mathematics