A cannon ball is shot into the air. The height of the ball above ground, in meters, t seconds after being shot is approximated by g(t) = −5t^2 + 20t + 2. The castle wall is 21m high. Will the cannon ball make it over the wall?
Explain your answer.

Most likely the cannon ball will

Step-by-step explanation:

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb