Answer:
2r
Step-by-step explanation:
r+3r+_=6r
4r+_=6r
Subtract 4r from both sides.
_=2r
Therefore the answer is 2r.
3/8
3/4 x 1/2 = 3/8
Answer: Variant C
f(x) = 3x^2 − 4
For finding f(-2) just replace x with - 2 like this:
f(-2)=3*((-2))^2-4=3*4-4=12-4=8
