Find the equation that the given graph represents.
A. f(x) = (x + 6)4
B. f(x) = -x4 + 3x2 + 6
C. f(x) = x4 - 3x2 + 6
D. f(x) = -x3 - 6x2 - x + 6
Answer: C
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Solve the application problem.Each side of a square is lengthened by 2 inches. The area of this new, larger square is 100 square inches. Find the length of a side of the original square.
A. 8 in. B. 12 in. C. 2 in. D. 10 in.
Use the inverse trig functions to express the angle in terms of the indicated unknown side. ?
Given that y = 7, express angle A in terms of x. Use one of the inverse trig functions tan-1, sin-1, or cos-1.
A. A = tan-1 
B. A = sin-1 
C. A = tan-1 
D. A = sin-1 
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Using the critical-path algorithm to schedule this project with two processors, the project finishing time is
A. 17 hours. B. 20 hours. C. 19 hours. D. 18 hours. E. none of these
Solve. Use ? ? 3.14 when necessary.A 20-foot ladder is leaning against a house with the base of the ladder 4 feet from the house. How high up the house does the ladder reach? Round to the nearest tenth foot.
A. 19.2 feet B. 20.4 feet C. 16 feet D. 19.6 feet