the function f(t)=-16t²+104t+56 models the approximate height in feet of an object t seconds after it is launched. his many seconds does it take for the object to hit the ground

Can someone me do math because i am having a breakdown rn because i don’t get it

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Solve the equation for b: a= (1/2)(b)(h)