Identify the open intervals where the function is changing as requested.Decreasing
A. (-?, 3)
B. (0, -2)
C. (0, 3)
D. (-?, -2)
Answer: A
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Solve the problem.The 10 ft wall shown here stands 33 feet from the building. Find the length of the shortest straight beam that will reach to the side of the building from the ground outside the wall.
A. 43 ft B. 56.7 ft C. 58.7 ft D. 57.7 ft
Integrate the function.
A. 
sin x - 
sin 3x + C
B. - 
cos3 x + C
C. 
cos3 x + C
D. 
sin3 x + C
Convert as indicated.70 cm to millimeters
A. 7000 mm B. 0.7 mm C. 70 mm D. 700 mm
The graph and equation of a polynomial f(x) are given. Determine the number of real zeros and the number of imaginary zeros.f(x) = x2 - 2x + 1
A. two real zeros; no imaginary zeros B. one real zero; one imaginary zero C. one real zero; no imaginary zeros D. no real zeros; two imaginary zeros