Assignment Which graph shows the solution to the inequality -0.5x s 7.5?
>
-18 -17 -16 -15-14-13 -12-11 -10-9-8
< +
-18 -17 -16 -15 -14 -13 -12-11 -10 -9 -8
1
+ 1 1
-3.5 -3
-5
-4.5
-4
-25
-5
-4.5
-4
-3.5
-3
-2.5

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

step-by-step explanation: