Question

G(t)=r^2+5t
h(t)=-4t-1
Find (g+h)(8)

Please explain how to do this!!!!

Answer 1

( g + h )(t)= g(t) + h(t)

( g + h )(t) = t^2 + 5t - 4t - 1

( g + h )(t) = t^2 + t - 1

______________________

( g + h )(8) = 8^2 - 8 - 1

( g + h )(8) = 64 - 8 - 1

( g + h )(8) = 56 - 1

( g + h )(8) = 55