Which triangle could be drawn as it is described? A. Which triangle could be drawn as it is described?

B. an acute triangle with sides measuring 7, 4, and 2

C. an obtuse triangle with sides measuring 5, 10, and 15

D. an isosceles triangle with angles measuring 20° and 80°

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!

idk

step-by-step explanation: