3 years ago

Help asap ?????? pls help me with question 7

Mathematics

1 answer:

fiasKO [112]3 years ago

8 0

Answer:

the mean is 5

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

$(x+8)^2 -x^2 = 12^2$

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Double check:

$\sqrt{12^2 + 5^2} = (5+8)\\\sqrt{12^2 + 5^2} = 13\\13 = 13$

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