A bird drops a stick from the top of Miami Tower. The height of the stick after x seconds is given be
function f(x) = 625 – 16x2.
Determine the height of the ball after 3 sec.
A : 144 feet
B : 481 feet
C : 529 feet
D : 577 feet

the correct answer is 5 6 and 7

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,