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
Answer:

Step-by-step explanation:
Maybe you want to simplify ...

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The distributive property and the rules of exponents are useful.
ab +ac = a(b+c)
(a^b)(a^c) = a^(b+c)
1/a^b = a^-b
Answer: 4 8×8= 64 half the base which is 8 =4
Step-by-step explanation:
I think the answer its 1.8 percent because if you subtract 15-13.2 comes out to be 1.8.
but l also think it could be 12 percent error.
5,725 is the answer to this problem