Solve. Round to the nearest tenth.A 30-ft-tall ladder is placed so that it reaches 20 ft up on the wall of a house. How far is the base of the ladder from the wall of the house?
A. 500 ft
B. 1300 ft
C. 36.1 ft
D. 22.4 ft
Answer: D
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Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = |x - 1|
A. 
B. 
C. 
D. 
Use the product rule to multiply.
? 
A. x2 - 9
B. 
C. 
D. 
Solve.Mike, Joe, and Bill are painting a fence. The painting can be finished if Mike and Joe work together for 4 hours 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 1 hour. How much time does it take for each man working alone to complete the painting?
A. Mike 8 hr, Joe 8 hr, Bill 16 hr B. Mike 16 hr, Joe 8 hr, Bill 8 hr C. Mike 12 hr, Joe 10 hr, Bill 10 hr D. Mike 8 hr, Joe 16 hr, Bill 8 hr
Solve the problem.The voltage E in an electrical circuit is given by E = 6.4 cos 110?t, where t is time measured in seconds. Find the period.
A. 
B. 55
C. 
D. 55?