answer this question and you'll be brainliest
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0
Answer:
7
Step-by-step explanation:
I think this is the answer
Answered by
0
Answer:
7
Step-by-step explanation:
Given, x + 5 is the mean proportional between x + 2 and x + 9.
⇒ (x + 2), (x + 5) and (x + 9) are in continued proportion.
⇒ (x + 2) : (x + 5) = (x + 5) : (x + 9)
⇒ (x + 5)² = (x + 2)(x + 9)
⇒ x² + 25 + 10x = x² + 2x + 9x + 18
⇒ 25 - 18 = 11x - 10x
⇒ x = 7
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