Answer:
h = (2x - 6) m
Explanation:
Area of a triangle:
A = 1/2 b h
2A = hb
so h = 2A/b
Plug in
h = 2(x^2 - 9) / (x + 3)
= 2 (x + 3)(x - 3) / (x + 3)
= 2 (x - 3)
= 2x - 6
Answer
the answer is correct answer c. I=(2x - 3) m
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