Answer:
4sqrt(3)
Step-by-step explanation:
If the triangle is equilateral, the hypotenuse is 2x
We can use the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
x^2 + 12^2 = (2x)^2
x^2 + 144 = 4x^2
144 = 4x^2 -x^2
144 = 3x^2
48 = x^2
Taking the square root of each side
sqrt(48) = sqrt(x^2)
sqrt(16*3) = x
4 sqrt(3) =x
If the y-intercept is at -69, meaning the point is (0, -69), thus x = 0, y = -69
Answer:
~ fati235's answer ~
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Hope this helps!
X= 2 the answer would be 2 because 4x2 = 8 and 8+8= 16
