Evaluate the exponential function at the specified value of x.y = 16x, x = -0.25
A. 2
B. -2
C. 
D. 4
Answer: C
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Determine whether 149,862 is divisible by 6. Answer yes or no.
What will be an ideal response?
As part of a statistics project, a 6th grade teacher brings to class a container with 300 red marbles and 500 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 40 marbles from the container. Of the 40 marbles drawn, 16 are red.The sampling error is most likely a result of
A. a confounding variable. B. sampling bias. C. sampling variability. D. nonresponse bias. E. none of these
Solve the problem.Suppose a cost-benefit model is given by 
where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 95% to the nearest dollar.
A. $6800 B. $129,199 C. $6460 D. $18,999
Write each rate as a unit rate as a phrase, and determine which is a better buy.A 20 ounce bottle of pop costs $1.60. A 40 ounce bottle of pop costs $2.80.
A. 20 ounce bottle: $0.07 per ounce; 40 ounce bottle: $0.08 per ounce. The 20 ounce is the better buy. B. 20 ounce bottle: $0.92 per ounce; 40 ounce bottle: $1.07 per ounce. The 20 ounce is the better buy. C. 20 ounce bottle: $0.08 per ounce; 40 ounce bottle: $0.07 per ounce. The 40 ounce is the better buy. D. 20 ounce bottle: $0.20 per ounce; 40 ounce bottle: $0.07 per ounce. The 40 ounce is the better buy.