Multiply.-5 ? (-6) ? (-18)
A. -29
B. 540
C. 48
D. -540
Answer: D
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250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.Approximately how many students had test scores between 65 and 81.75?
A. 181 B. 147 C. 204 D. 125 E. 85
Perform the indicated operation.110two - 11two
A. 100two B. 11two C. None of these D. 10two
Solve.The formula v = 
can be used to estimate the maximum safe velocity v, in miles per hour, at which a car can travel along a curved road with a radius of curvature r, in feet. To the nearest whole number, find the maximum safe speed for a curve in a road with a radius of curvature of 150 feet.
A. 12 mph B. 8 mph C. 19 mph D. 31 mph
Evaluate.
A. 20 B. 22 C. 19 D. 21