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Answer:
(you can round to 23.9 or 24)
Step-by-step explanation:
y² = A² + x²
if y = 27.1 and x = 12-9
we substitute the values
27.5² = A² + 12.9²
find A
A =
A = 23.83 (you can round to 23.9 or 24)
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