System
6x - y - 4z = -9
-5x + 7y + 62 = 22
4x – 8y + 72 = 32

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

One positive number is 9 more than twice another. if their product is 95, find the numbers

Sketch one cycle if the cosine function y=2cos2theta