A community pool with 8,600 gallons of water is being drained for the winter at a continuous rate of 5% per hour. If f (t) = 8600e-0.05t represents the amount of water
after t hours, after how many hours will the pool be half full? Round your answer in
hours to 2 decimal places.

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

Sketch one cycle if the cosine function y=2cos2theta

Icould really use some with this question.