Solve the problem.Mike, Joe, and Bill are painting a fence. The painting can be finished if Mike and Joe work together for 
and Bill works alone for 2 hours; or if Mike and Joe work together for 2 hours and Bill works alone for 5 hours; or if Mike works alone for 6 hours, Joe works alone for 2 hours, and Bill works alone for 
How much time does it take for each man working alone to complete the painting?
A. Mike: 16 hr; Joe: 8 hr; Bill: 8 hr
B. Mike: 12 hr; Joe: 10 hr; Bill: 10 hr
C. Mike: 8 hr; Joe: 8 hr; Bill: 16 hr
D. Mike: 8 hr; Joe: 16 hr; Bill: 8 hr
Answer: D
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Find the indicated vector.Let u = 
, v = 
. Find 
u - 
v.
A. 
B. 
C. 
D. 
Solve the problem.The distance traveled by a falling object is given by d = 16t2, where d is the distance (in feet) the object falls in t seconds. A stuntman jumps from a rooftop 375 ft off the ground. How long will it take him, falling freely, to reach the ground? Round your answer to the nearest tenth of a second.
A. 23.4 sec B. 4.8 sec C. 77.5 sec D. 11.7 sec
Evaluate the quotient function at the indicated value.Given f(x) = 4 - 25x2 and g(x) = 6 - 25x + 25x2, find 
(0).
A. 
B. 
C. 1
D. undefined
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.(r1/6s1/6)2
A. r1/3s1/3 B. r2s2 C. r1/12s1/12 D. r1/36s1/36