As part of a study, 800 college football players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 235 pounds and the standard deviation is 25 pounds.A weight of 185 pounds corresponds to a standardized value of
A. -3.
B. -2.
C. -1.5.
D. -1.
E. none of these
Answer: B
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Provide an appropriate response.Suppose that f'(x) = 2x for all x. Find f(2) if f(-2) = 2.
A. 2 B. 4 C. 6 D. 0
Find the least common multiple of the given number by the method of intersection of sets of multiples.84 and 378
A. 2268 B. 1512 C. 756 D. 42
Identify where f is increasing or where f is decreasing, as indicated. Round your answer to two decimal places when appropriate.f(x) = 
; increasing
A. (-?, ?) B. [-3.00, 3.00] C. [3.00, ?) D. (-?, 3.00]
Solve the problem.The volume of a rectangular box with square base and a height of 5 feet is V(x) = 5x2, where x is the length of a side of the base. Find the instantaneous rate of change of volume with respect to x when x = 3 feet.
A. 15 ft3/ft B. 6 ft3/ft C. 30 ft3/ft D. 45 ft3/ft