Question

please help, thank you!!

Answer 1

Answer:

D (4)

Step-by-step explanation:

So we have the function:

$f(t)=3t^2+5t+6$

And we want to find f(-3).

To do so, substitute -3 for x. Thus:

$f(-3)=3(-3)^2+5(-3)+6$

Square:

$f(-3)=3(9)+5(-3)+6$

Multiply:

$f(-3)=27-15+6$

Add:

$f(-3)=18$

So, our answer is D (4)