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Find the positive solution for a: a 2 + 7 2 = 25 2?
Science & Mathematics by Anonymous 2018-05-25 21:37:11
Social Science
Find the positive solution for a: a 2 + 7 2 = 25 2?
2 answers
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Anonymous
a^2 = 25^2 - 7^2 a^2 = (25 - 7)(25 + 7) a^2 = 18(32) a^2 = 576 a = sqrt(576) a = 24
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Anonymous
a^2 + 7^2 = 25^2 a^2 = 25^2 - 7^2 a^2 = 32(18) a = +/-(576)^(1/2) a = -24 a = 24
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