mholmes2007
Answered

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Sagot :

Answer:

12

Step-by-step explanation:

By ythagoras Theorem,

x^2 + 9^2 = 15^2

x^2 + 81 = 225

x^2 = 225 - 81

x^2 = 144

x = √144

x = 12

christopherallen

Answer:

x=12

Step-by-step explanation:

We can use the Pythagorean Theorem for this problem.

A^2+B^2=C^2

The A or B can represent 9, but C must represent the 15 because it is the hypotenuse. Inputing these into the equation gives this:

9^2+B^2=15^2 (I just represented A as 9)

Solving further gives this:

81+B^2=225

Solving for B gives the answer 12.

So x must be 12.

Boom.

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