Evaluate using the order of operations.2 + (-7) + (-3) + 10 + (-16) + 8
A. -6
B. 0
C. -26
D. 8
Answer: A
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Use the 68-95-99.7 rule to solve the problem.The time it take Claudia to drive to work is normally distributed with a mean of 47 minutes and a standard deviation of 7 minutes. What percentage of the time will it take her less than 68 minutes to drive to work?
A. 99.7% B. 0.3% C. 99.85% D. 0.15%
Find the missing length(s) in the right triangle. If necessary, round to the nearest tenth.
A. a = 29.4 cm; b = 17 cm B. a = 17 cm; b = 867 cm C. a = 17 cm; b = 29.4 cm D. a = 29.4 cm; b = 25.5 cm
Solve the problem.The number of enrollees in health maintenance organizations (HMOs) in Illinois in a recent year was 2,148,075. This was a 40.5% increase over the previous year. What was the former number of enrollees?
A. 1,528,879 enrollees B. 611,552 enrollees C. 152,888 enrollees D. 3058 enrollees
Solve the problem.In a right triangle, one acute angle is 54° more than twice the other. Find each acute angle.
A. 28° and 62° B. 21° and 69° C. 12° and 78° D. 37° and 53°