I need help with this math problem on my quiz can someone help me ?

A. 6 sq. units

Step-by-step explanation:

Area of a triangle can be found with base times height divided by 2

The base is 6 and the height is 2

6x2= 12, 12/2 is 6

A. 6 sq. units

4444444444444 i think

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!