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pentagon [3]
3 years ago
8

How do you divide 81 by 13.5

Mathematics
2 answers:
Gekata [30.6K]3 years ago
7 0

Answer:6

Step-by-step explanation:

By going on a calculator and typing 81 then click divide then press 13.5

vladimir2022 [97]3 years ago
7 0

your answer would be 6.

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Answer:

x = - \frac{\sqrt{51} }{10}

Step-by-step explanation:

the equation of a circle centred at the origin is

x² + y² = r² ( r is the radius )

The radius of a unit circle is r = 1

substitute (x, - \frac{7}{10} ) into the equation and solve for x

x² + (- \frac{7}{10} )² = 1²

x² + \frac{49}{100} = 1 ( subtract \frac{49}{100} from both sides )

x² = 1 - \frac{49}{100} = \frac{51}{100} ( take square root of both sides )

x = ± \sqrt{\frac{51}{100} } = ± \frac{\sqrt{51} }{10}

since the point is in the 3rd quadrant then x < 0

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2 years ago
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