Solve the problem.The 8 ft wall shown here stands 27 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. 35 ft
B. 47.9 ft
C. 46.9 ft
D. 45.9 ft
Answer: C
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Use the fundamental identities to simplify the expression.sin2? + tan2? + cos2?
A. cos3? B. sin ? C. sec2? D. tan2?
The polar equation of the graph is either r = a + b cos ? or r = a + b sin ?, a > 0, b > 0. Match the graph to one of the equations. 
A. r = 4 + 3 cos ? B. r = 4 + 3 sin ? C. r = 3 + 4 cos ? D. r = 3 + 4 sin ?
Solve. Round to the nearest tenth when necessary.Jack and Jill are planning a new kitchen. The old kitchen measured 11 feet by 12 feet. The new kitchen is similar in shape, but the longest dimension is 26 feet. What is the smaller dimension of the new kitchen?
A. 3432 ft B. 28.4 ft C. 23.8 ft D. 5.1 ft
Find the derivative.y = (x + 6)4e-3x
A. -(x + 6)3(3x + 14) e-4x B. -(x + 6)3(3x + 14) e-3x C. (x + 6)3(x + 10) e-3x D. -12(x + 6)3e-3x