In a set of picture frames, frame 1 has a length that is 5 inches longer than its width, w, and frame 2 has the same length as frame 1, but is 2 inches wider than frame 1. The area of frame 2 is 28 square inches more than the area of frame 1.

Part 1

Which equation will help find the area of frame 2?
A.
w(w + 5) + (w + 2)(w + 5) = 28
B.
w(w + 5) + 28 = (w + 2)(w + 5)
C.
(2w + 5)(2w + 7) = 28
D.
(2w + 5)(2w + 7) + 28 = 0

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

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!

k

step-by-step explanation:

domit