Answer:
need help too
Step-by-step explanation:
Set up a proprtion and cross multiply.
18/7.5=22/4x+1
7.5×22=18 (4x+1)
165=72x+18
147=72x
x=2.04
Answer:
-3f - 10
Step-by-step explanation:
-1 times 10 = -10
-1f times 3f = -3f
Sorry if this isn't right.
Answer:
f(- 2) = - 1
Step-by-step explanation:
To evaluate f(- 2) substitute x = - 2 into f(x) , that is
f(- 2) = 3 - (- 2)² = 3 - 4 = - 1