Question

The equation h=7cos (pie/3 t) models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched and then released.
A. solve the equation for t.

B. Find the times at which the weight is first at a height of 1cm, of 3cm and of 5cm above the rest position. Round your answers to the nearest hundred.

C. Find the times at which the weight is at a height of 1cm, of 3cm, and of 5cm, below the rest position for the second time. Round your answers to the nearest hundredth.

Answer 1

@Girl_Ninja
@awatson2356
@december4ever
@Tia1994
@helpersrus
@youngamerican

Answer 2

@e.mccormick Please help me