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Cassandre Gibson

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3y ago
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10y ago

(square root of 5) squared = 5

So 7 - (square root of 5) squared = 7 - 5 = 2

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Q: How do you work out 7 - square root of 5 squared?
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Is the square root of 5 squared a rational number?

The square root of 5 squared is 5, which is a rational number.


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From point A to point B You need the X and Y value of both point A and B Formula = Distance = Square root of [(x1 + x2)2 + (y1 + y2)2] So therefore given points (1:2) and (5:-6) Square root of (1 - 5)squared + (2 + 6)squared =Square root of -4 squared + 8 squared =Square root of 16 + 64 =Square root of 80 This can be your answer but you should go a step further =Square root of 80 =Square root of 16 * 5 =4*Square root of 5


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