Find the specified quantity.Find the amplitude of y = 4 sin (2x + ?).
A. 4
B. ?
C. 2
D. 8
Answer: A
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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.
The scores on a driver's test are normally distributed with a mean of 100.Find the score that is 2 standard deviations below the mean, if the standard deviation is 27.
A. 127 B. 73 C. 154 D. 46
Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = -3x2 
A. 
B. 
C. 
D. 
Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total profit function is given by 
, where x represents the number of boxes of computer chips produced. The total cost function, C(x), is such that 
Find C(x).
A. C(x) = -0.3x2 + 10x + 15 B. C(x) = 7x + 11 C. C(x) = 5x + 15 D. C(x) = 6x + 20