Solve the problem.The distance in miles that can be seen on the surface of the ocean is given by d = 1.4
where h is the height in feet above the surface of the water. How high above the water would a pirate have to climb to see 17 miles? Round your answer to the nearest foot.
A. 6 ft
B. 147 ft
C. 74 ft
D. 570 ft
Answer: B
Mathematics
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Factor. Assume that all exponents are positive.p6x - q2
A. (px + q)(px - q) B. (p3x - q)2 C. (p3x + q)(p3x - q) D. (p3x + q)(p2x - q)
Mathematics
Given an infinite sequence with an = 2n, find a45.
A. a45 = 92 B. a45 = 88 C. a45 = 47 D. a45 = 90
Mathematics
Factor, if possible.15y2 + 22y + 8
A. (3y + 2)(y + 4) B. Prime polynomial C. (3y - 2)(5y - 4) D. (3y + 2)(5y + 4)
Mathematics
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 what percent of the students scored between 65 and 75 points?
A. 95% B. 10% C. 68% D. 34% E. none of these
Mathematics