The measure of angle A in triangle ABC is 3 times the measure of angle B, and the measure of angle C is half the measure of
angle B. Write a equation.
(Thiers no numbers included)

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

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!

ummm seems that u didnt post the attachement !