HaleyBug03
HaleyBug03 HaleyBug03
  • 02-06-2017
  • Mathematics
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What is the value of x? Show all of your work.

What is the value of x Show all of your work class=

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mspeople
mspeople mspeople
  • 02-06-2017
you can use the Pythagorean theorem: a^2+b^2=c^2.

x^2+36=117 so x is 9 or -9 but since this is a length it would have to be positive so the answer is 9.
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irspow
irspow irspow
  • 02-06-2017
The Pythagorean Theorem states that the hypotenuse of a right triangle is equal to the square root of the sum of its squared sides, mathematically:

h^2=x^2+y^2, where h=hypotenuse and x and y are the side lengths.

In this case we can say:

(√117)^2=6^2+x^2

117=36+x^2

x^2=117-36

x^2=81

x=√81  since x>0

x=9 cm
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