MATH SOLVE

4 months ago

Q:
# PLEASE HELP!!!!!!The equation that models the height above or below equilibrium in inches, h, of a spring over time in seconds, t, is h=-30cos(2pi/5 t). At which times will the spring be at a height of 20 in. above equilibrium? Answer Options:1.3 seconds1.8 seconds3.2 seconds4.3 seconds5.7 secondsTHERE ARE 2 CORRECT ANSWERS!!!

Accepted Solution

A:

Answer: the answers are 1.8 and 3.2 seconds. So both B and C.Step-by-step explanation: