As part of a study on the metabolism of athletes, 400 college basketball players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 215 pounds and the standard deviation is 15 pounds.The first quartile of the weights was approximately
A. 208 pounds.
B. 225 pounds.
C. 205 pounds.
D. 200 pounds.
E. none of these
Answer: C
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Write an equation for a function that has a graph with the given characteristics.The shape of y = 
is shifted 1.1 units to the left. This graph is then vertically stretched by a factor of 8.7. Finally, the graph is reflected across the x-axis.
A. f(x) = -8.7
B. f(x) = -8.7
C. f(x) = -1.1
D. f(x) = 8.7
Write with rational exponents and then apply the properties of exponents. Assume that all radicands represent positive real numbers. Give answers in exponential form.
A. 
B. 
C. 
D. x11/2
Solve the problem.A drippy faucet wastes 64 oz of water a day. If there are 38 million such drippy faucets, how much water, in gallons, is wasted in a day?
A. 2432 gal/day B. 76,000,000 gal/day C. 38,000,000 gal/day D. 19,000,000 gal/day
Solve the inequality graphically.9x + 6 ? 8x + 3
A. {
x < 9}
B. {
x > 9}
C. {
x ? -3}
D. {
x ? -3}