Question

For the functions u(t) = 7t - 2 and s(t) = t^2 - 9, what is s (u(2))?

Answer 1

Answer:

$s(u(2)) = 135$

Step-by-step explanation:

$u(t) = 7t - 2 \\ u(2) = 7(2) - 2 \\ u(2) = 14 - 2 \\ u(2) = 12 \\ \\ s(t) = {t}^{2} - 9 \\ s(u(2)) = {(12)}^{2} - 9 \\ s(u(2)) = 144 - 9 \\ \\ s(u(2)) = 135$

I hope I helped you^_^