Answer:
F(a) =2a^2+4a+5
Step-by-step explanation:
just put x= a
Did you mean -21(-2-5)+(-14)+6(8-4.3) ?
If that, the answer is 155.2:)) im sorry if im wrong:((
Answer:
Y=3/5x -4/5
Step-by-step explanation:
3/5 is the slope so you do 3/5x
-4/5 is negative because the line passes two negative coordinates
Hope this helps!

Use substitution:


<span>we're going back to substitution:

therefore

</span>
Answer:
5.47 is the square root of 30