Bert S.
asked • 04/26/19Geometric Mean problem: What is x? hypotenuse=18, other part of hypotenuse= 8, altitude= x+9
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1 Expert Answer
The altitude is the geometric mean of the two parts of the hypotenuse:
(x+9)2 = 18·8
x2 +18x + 81 = 144
x2 +18x - 63 = 0
Solve for x by factoring or using the quadratic formula.
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Mark M.
Where is the "other part of hypotenuse?"04/26/19