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Find the value of x to the nearest tenth! HELP ME!!!!!!!!!!!!! (PICTURE IS BELOW)
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Find the value of x to the nearest tenth! HELP ME!!!!!!!!!!!!! (PICTURE IS BELOW)

Find the value of x to the nearest tenth! HELP ME!!!!!!!!!!!!! (PICTURE IS BELOW)-example-1
User Rsinha
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15 votes
15 votes
What the person said 11.4
User Alan Peabody
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8 votes
8 votes

Answer:

11.4

Explanation:

By Pythagoras Theorem:


x^(2) = {7}^(2) + ( {4}^(2) + {8^(2)}) \\ \\ x^(2) = 49+(16 + 64)\\ \\ x^(2) = 49+80\\ \\ x^(2) = 129 \\ \\ x = √(129) \\ \\ x = 11.3578167 \\ \\ x = 11.4

User Reynald
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