Find m.

3 1/3 7 1/2 1 19 1/5

Step-by-step explanation:

We are given two similar triangles. In the small triangle: on one side there is 5, and in the big triangle the number is 12.

Step 1: find the proportionality between 12 and 5

12 and 5 are at the same place, so, therefore, to find it, divide:

Step 2: use the proportion we found to multiply to 8

If we multiply to 8, it would be the same thing as if we multiply 12 to

Therefore,

$79500

step-by-step explanation:

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!