Question

if ft equal to 40 t square - 3 t+ 6 find F - 5​

Answer 1

Step-by-step explanation:

Given:

$f(t) = 40 {t}^{2} - 3t + 6 \\ substituting \: t = - 5 \: in \: the \: above \: \\ function \: we \: find : \\ f( - 5) = 40 {( - 5)}^{2} - 3( - 5) + 6 \\ \therefore \: f( - 5) = 40 \times 25 + 15 + 6\\ \therefore \: f( - 5) = 1000 + 15 + 6\\ \therefore \: f( - 5) = 1021$