For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 5x2 + 6, g(x) = x + 3Find (f - g)(-4).
A. 87
B. 79
C. -82
D. 93
Answer: A
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Solve the problem.A 9-ft. board is cut into 2 pieces so that one piece is 5 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.
A. shorter piece: 15 ft; longer piece: 32 ft. B. shorter piece: 1 ft.; longer piece: 8 ft. C. shorter piece: 4.5 ft; longer piece: 27 ft. D. shorter piece: 22 ft; longer piece: 27 ft.
Solve the problem.Tom Quig traveled 270 miles east of St. Louis. For most of the trip he averaged 70 mph, but for one period of time he was slowed to 20 mph due to a major accident. If the total time of travel was 6 hours, how many miles did he drive at the reduced speed?
A. 80 mi B. 70 mi C. 60 mi D. 55 mi
Find the mean.Following is a list of rainfall amounts for the past five months. Each amount is the total of rainfall in a month. Calculate the mean. Round to the nearest tenth when necessary. 4.2 in.
5 in.
2 in.
5 in.
1.8 in.
A. 3 in. B. 3.6 in. C. 4.2 in. D. 5 in.
Provide an appropriate response.If the derivative of an odd function g(x) is zero at x = c, can anything be said about the value of g' at 
Give reasons for you answer.
What will be an ideal response?