Can someone help with this asap

1. 60

2. true

3.false

Step-by-step explanation:

1. All the angles in an equilateral/equiangular triangles have the same side length and the same angle, since all the angles in a triangle add up to 180 degrees, 180 divided by 3 is 60

2 and 3. An isosceles is a triangle with two equal sides. The angles opposite the equal sides are also equal.  An equilateral triangle has sides of the same length.

answer: i'm going in

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!