220= 45*x. I hope you are satisfied with my answer.
F(x)=4-2x+x^2
=4-1+1-x-x+x^2
=3+(1-x) - x(1-x)
= 3+(1-x) (1-x)
= 3 + (1 - x)^2
f(x) = (1 - x)^2 + 3
Answer:
B is correct i think
Step-by-step explanation:
Answer:
Step-by-step explanation: idk
Answer:
Because triangle has three sides