Which expression is equivalent to is Measure of angle 4?

A. Measure of angle 2 + measure of angle 3
B. Measure of angle 1 + measure of angle 2
C. Measure of angle 1 + measure of angle 3
D. Measure of angle 5 + measure of angle 6

A. Measure of angle 2 + measure of angle 3

Step-by-step explanation:

Because angle 4 is an exterior angle of given triangle which will be equal to the Measure of angle 2 + measure of angle 3

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!