B -2x8y18
Use photo math it’s helpful
The first square is 100% and the second square is 55% filled in
Answer:

Step-by-step explanation:
By the Pythagorean theorem, triangle BCD has

and triangle ABD has
.
Substituting the first equation into the second equation for
gives the equation

Now triangle ABC has

Expanding out the left side,
.
Now substitute the equation from before,
, into the new equation.


We work to isolate
by adding
to both sides of equation and subtracting
from both sides.

Divide both sides by 2 and you get 
Assume that x is positive and square root both sides to get the final result of

Answer: See below
Explanation:
(x^2+10x+7)(2x-1) = 2x^3+19x^2+4x-7
2x^3-x^2+20x^2-10x+14x-7 = 2x^3+19x^2+4x-7
2x^3+19x^2+4x-7 = 2x^3+19x^2+4x-7
Use a proportion.
2.2/5.5 = 48/x
2.2x = 5.5 * 48
2.2x = 264
x = 120
Answer: 120 ft