(30 points) what conclusion can be deduced about angles 3 and 5?
A: they are supplementary
b: they are complementary
c: they are alternate interior angles
d: they are alternate exterior angles

A. they are supplementary angles

Step-by-step explanation:

cuz, angle 3 and 5 form co inferior angles pair hence sum of them will be equal to 180°

so, they are supplementary in nature.

triangle abc is reflected on the line x=-6.5 then reflected again on the x axis

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!