Which pairs of quadrilaterals can be shown to be congruent using rigid motions?
Select Congruent or Not congruent for each pair of
quadrilaterals.

quadrilateral 1 and
quadrilateral 2

quadrilateral 1 and
quadrilateral 4

quadrilateral 2 and
quadrilateral 3

quadrilateral 3 and
quadrilateral 4

a

step-by-step explanation:

the answer is a

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!