A=9. I hope this is what you are looking for
It would be x to the 1/4. Just like how the square root of x is to the power 1/2. Its just something you have to remember that the root is the denominator and the power under the radical is the numerator
Answer:
4
Step-by-step explanation:
First, subtract 4 from both sides, then divide by 2 to isolate the variable.

The measure of the acute angle that the wire makes with the ground is 63.27°.
The situation forms a right angle triangle.
<h3>How to find the angle of a right triangle?</h3>
The length of the wire is the hypotenuse of the right triangle.
The distance from the foot of the pole is the adjacent side of the right triangle.
Therefore,
cos ∅ = adjacent / hypotenuse
cos ∅ = 18 / 40
cos ∅ = 0.45
∅ = cos⁻¹ 0.45
∅ = 63.2563160496
∅ = 63.27°
learn more on right angle triangle here: brainly.com/question/14866099
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