Answer:
pretty sure is the first one
Step-by-step explanation:
-1/2x +3 =3x -4
Answer: f (-2) = 21
Step-by-step explanation:
For f (-2), substitute the value of x into the equation:
F(-2) =3(-2)^2 - 2(-2) + 5
=3 (4) + 4 + 5
= 12 + 4 + 5
f (-2) = 21
Answer: 35 diagonals
Step-by-step explanation:
A decagon has (10 2) – 10 = 35 diagonals.