When x=1 and -2 so it is C
We need to see the puzzles in an attachment or something to answer this question
If 2 triangles are similar, then the legnths of sides are in proportion
a.
compare 1 side
CB looks about 4/3 as big as SR
so
ABC:TSR=4:3
b. reverse it
3:4
d.
if smaller is 3/4 of bigger then
a=1/2bh
if b and h are 3/4 smaller then
a=1/2(3/4)^2bh
a=1/2bh(9/16)
smaller is 9/16 compared to bigger so
16:9 is ratio
e. ratio is reversed
9:16
Girl I struggle with this
A = L * W........x = W
L = 2x + 3
A = 119
119 = x(2x + 3)
119 = 2x^2 + 3x
2x^2 + 3x - 119 = 0
(2x + 17)(x - 7) = 0
2x + 17 = 0
2x = -17
x = - 17/2 or - 8.5....wont work because it is negative
x - 7 = 0 L = 2x + 3
x = 7 L = 2(7) + 3
L = 14 + 3
L = 17
so the width (x) = 7 inches and the length (L) = 17 inches...
the equation used was : 119 = x(2x + 3)...or 2x^2 + 3x - 119 = 0...not sure which equation they want...but they are the same
