-8x-8y=0 (divide both sides by -8, you get:) x+y=0, x=-y
-8x2y=-20 (divide both sides by -16:) xy=20/16=5/4
plug the first simplified equation into the second one,
-y²=5/4...This does not have a solution, are you sure you typed the second equation correctly?
Answer:
Step-by-step explanation:
(3a) - 27 = 3a - 3^3 = 3(a - 3^2)
Next time, please share all of the answer choices. Thanks.
The length of the wire is 37.15 ft
<u>Explanation:</u>
The figure is attached for the reference.
tan (71) = 
tan (36) = 
So,
tan(36) (36 + x) = y
tan(71) = 

Substituting x = 12.11 ft in equation 1:

Length of the wire, z = 
So,

Therefore, the length of the wire is 37.15 ft