The hypotenuse of a 45°-45°-90° triangle measures 22 StartRoot 2 EndRoot units. A right triangle is shown. The length of the hypotenuse is 22 StartRoot 2 EndRoot 2 units. The lengths of the other 2 sides are congruent. What is the length of one leg of the triangle? 11 units 11 StartRoot 2 EndRoot units 22 units 22 StartRoot 2 EndRoot units

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!

b

step-by-step explanation: