Answer:
-18/3
Step-by-step explanation:
Multiply the denominator and numerator by the same whole number.
x = 19.42
8²+x²=21²
64+x²=441
-64 -64
x²=377
x=19.41648784
rounded is 19.42
Range of the following:
-3,-2,1
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55n - 6n
49n
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