Answer:
7.6 x 10^-4
Step-by-step explanation:
f(x)=-3x^2-1
f(-2)= -3(-2)²-1=-3·4-1= - 13
5/16 = n/80
bring 80 over to the other side to leave n alone. 80 then gets a multiplication sign in front of it.
5/16 x 80=n
5/16=0.3125
0.3125x80=25
n=25
hope this helps
X= 1, what do you mean algebra tiles to model given two step equation?