Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 689 mi
B. 26.249 mi
C. 344.5 mi
D. 18.5 mi
Answer: B
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Solve the problem.In 2008 an outdoor mall was open throughout the year. The number of shoppers averaged 5000 on sunny days, 4000 on cloudy days, 1200 on rainy days, and 3000 on snowy days. The percentage of days of each type in 2008 is given in the following table. Find the average number of average shoppers per day at the mall for 2008. 
A. 3943 B. 3826 C. 3300 D. 2100 E. 1240
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.A weight of 188 pounds corresponds to a standardized value of
A. -1.8. B. 27. C. -1.5. D. 1.8. E. none of these
Translate the sentence to an algebraic inequality.The number of people at a concert is not to exceed 2718.
A. x ? 2718 B. x < 2718 C. x ? 2718 D. x > 2718
Solve the system by substitution, if possible.
A) (9, –2)
B) (6, 3)
C) (–3, 10)
D) (3, 6)
E) no solutions