Question

Find x

1.5
0.9









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Answer 1

Explanation:

Remark

You are trying to find one of the legs of a right triangle. All you need is the Pythagorean Theorem.

Formula

x^2 + y^2 = c^2

Givens

x = ?

y = 0.9

c = 1.5

Solution

x^2 + 0.9^2 = 1.5^2

x^2 + 0.81 = 2.25 Subtract 0.81 from both sides

x^2 = 2.25 - 0.81

x^2 = 1.44 Take the square root of both sides

sqrt(x^2) = sqrt(1.44)

x = 1.2