Which pair of angles are vertical angles?
∠mrc and ∠krm
∠krc and ∠crh
∠kre and ∠ert
∠ert and ∠mrc

Just tell me how to set up the equation.

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28