performing the indicated operations?

Question

A building is 540 ft high. Neglecting air resistance, the height of an object dropped from the top of this building at time t is given by the polynomial - 16t^2+ 540 Find the height of the object after 5 seconds.

Answer 1

(-16 x 5^2) + 540 gives you the answer...

(-16 x 25) +540

(-400) +540

140ft

Answer 2

Using your formula - replace the T with 5 for an equation:

-(16*5*5) + 540

which equals 140 feet above the base of the building.

ta da..