Solve the problem.In a computer simulation, a satellite orbits around Earth at a distance from the Earth's surface of  miles. The orbit is circular, and one revolution around Earth takes 10.8 days. Assuming the radius of the Earth is 3960 miles, find the linear speed of the satellite. Express the answer in miles per hour to the nearest whole mile.

A. 654 mph
B. 16,075 mph
C. 750 mph
D. 119 mph


Answer: C

Mathematics

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Solve the problem.John earns $13.28/hour. If he works 17 hours, how much will he earn?

A. $225.77 B. $226.86 C. $225.76 D. $225.86

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Solve the problem.The formula  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 radius of curvature if the maximum safe velocity is 35 miles per hour.

A. 490 ft B. 1225 ft C. 196 ft D. 3063 ft

Mathematics

E ( X )

The random variable X has the probability density function over [0,?) .
Compute the following quantity.

Mathematics

Solve the problem.The total sales made by a salesperson was $25,000 after 3 months and $68,000 after 23 months. Predict the total sales after 36 months.

A. $95,950 B. $95,992 C. $96,050 D. $95,920

Mathematics