Mathematics, 05.03.2021 02:20 brookieharrisop5n7us
A model rocket is launched directly upward at a speed of 20 meters per second from the ground. The function f(t)=β4.9t2+20t, models the relationship between the height of the rocket and the time after launch, t, in seconds. When, in seconds after launch, will the rocket reach its highest point? Round to two decimal places.
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Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.
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