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23 votes
Solve for x with an explanation pls

Solve for x with an explanation pls-example-1
User Jen
by
4.7k points

2 Answers

8 votes
X=9

A squared + b squared = c squared

C is the hypotenuse (the side opposite of the right angle)

X*2 + square root of 63 squared = 12*2
Squaring 63 would cancel out with the square root. You are left with x*2 + 63 = 144. 144-63= 81. X*2=81 ; square root both sides. You are now left with x=9
User Ridvankucuk
by
4.7k points
9 votes

Answer: 9

Explanation:

Use Pythagorean's Theorem for a right triangle.


a^2+b^2=c^2


(√(63)) ^2+x^2=12^2\\63+x^2=144\\x^2=81\\x=9

User David Blevins
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4.6k points