2 years ago

Solve for x: 2|2x-2| +4=20

Mathematics

1 answer:

gregori [183]2 years ago

6 0

$2|2x-2| +4=20\\
4|x-1|=16\\
|x-1|=4\\
x-1=4 \vee x-1=-4\\
x=5 \vee x=-3$

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Correct choice is A

Step-by-step explanation:

Consider right triangle ABC formed by the telephone pole (side AB) and ground (side BC). In this triangle AC is the length of the wire, BC is the distance from the base of the pole to the spot where the wire touches the ground and AB=15 ft, ∠ACB=42°.

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