Aprojectile is thrown upward so that its distance above the ground after t seconds is h = - 16t2+ 440t. after how many seconds does it reach its maximum height?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Place the following steps in order to complete the square and solve the quadratic equation,

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.