5. Airplanes use Distance Measuring Equipment (DME) to measure the distance from the plane to a nearest radar station. If the distance from a
plane to a radar station is 160 miles and the angle of depression is 34°, find
the number of ground miles from a point directly below the plane to the
radar station.
(show your work please.)

Which of the following graphs represents the function f(x) = 2^x

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?