Multiply. Simplify and leave the numerator and denominator in your answer in factored form.
? 
A. 
B. 
C. 
D. 
Answer: C
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Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.sin 77°
A. csc 13° B. cos 77° C. cos 13° D. sin 167°
Solve.Angie is wrapping a present for her nephew. She has a roll of wrapping paper that has 13 feet of wrapping paper on the roll. She uses 
feet to wrap the present. How many feet of wrapping paper are left on the roll?
A. 10
feet
B. 10
feet
C. 12
feet
D. 9
feet
Solve the rational inequality.
+ 
? - 
A. [-4, -2) ? (-2, 1] B. [-4, -2) ? [1, 2) C. (-?, -4 ] ? (-2, 1] ? (2, ?) D. (-?, -2 ] ? [ 1, 2)
Solve the problem.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 12 hr, Joe 10 hr, Bill 10 hr B. Mike 16 hr, Joe 8 hr, Bill 8 hr C. Mike 8 hr, Joe 8 hr, Bill 16 hr D. Mike 8 hr, Joe 16 hr, Bill 8 hr