Simplify the exponential expression.(x5)9
A. x45
B. x14
C. 9x45
D. 9x5
Answer: A
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 6 cos t + 2 cos 3t, y = 6 sin t - 2 sin3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Use scientific notation to solve the problem.The national debt of a small country is $7,420,000,000 and the population is 2,550,000. What is the amount of debt per person?
A. $2.91 x 106 B. $29.10 C. $2.91 x 103 D. $2.91
Determine whether the graph is the graph of a function.
A. Function B. Not a function
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.Approximately how many players had weights with standardized values between 1 and 2?
A. 216 B. 400 C. 432 D. 108 E. none of these