For the pair of similar triangles, find the value of x.
2x-4
39
x+6
24

x= 20

Step-by-step explanation:

set up a proportion:

(2x - 4)/24 = 39 / (x + 6)

(2x - 4)(x + 6) = 936

2x^2 + 8x - 24 = 936

x^2 + 4x - 12 = 468

x^2 + 4x - 480 = 0

(x - 20)(x + 24) = 0

x= 20, -24

has to be positive so x = 20

12

Step-by-step explanation:

based on pythagorean triples 5, 12, 13 and 8, 15, 17.

15 ft

Step-by-step explanation:

In a parallelogram the diagonals bisects each other

So WC= CY

solve the equation for x

Subtract x from both sides

Now we add 7 on both sides

x=11

Now we need to find CY

Plug in 11 for x