Let f(x) = y = 5x - 7. Then f(3) = 5(3) - 7 = 8, and f(8) = 5(8) - 7 = 33
Then the ave. r. of c. of f(x) = 5x - 7 from x = 3 to x = 8 is
33 - 8 25
----------------- = -------- = 5 (answer)
8 - 3 5
You can set it up as an equation:
29.95x + 2x
then plug in x = 7.
I'm not sure how this really relates to the distributive property though.
Answer:
great :) wbu
Step-by-step explanation:
Simplified :(5x+4y)(5x−4y)
=(5x+4y)(5x+−4y)
=(5x)(5x)+(5x)(−4y)+(4y)(5x)+(4y)(−4y)
=25x2−20xy+20xy−16y2
=25x2−16y2
hope this helps!