3 years ago

Why mathematicians use radicals instead of decimals?

1 answer:

8 0

Mathematicians use radicals instead of decimals to provide a more accurate answer. For example, √14 would be a never ending decimal, but rounded it would be 3.74165738677. So do most imperfect squares such as √2 or √8. To get a more accurate number for an answer, it is better to use radicals as rounded numbers would not get the exact answer.

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Plz help thank u for number 9 and 10

saw5 [17]

It is 6 for number 9 glad I could help

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3 years ago

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Slope of a line perpendicular to 5x -9y = 1

romanna [79]

The perpendicular line would have a slope of 1/3.

Perpendicular lines have opposite and reciprocal slopes. So first we have to find the slope of the original line. We can do this by solving the equation for y.

5x - 9y = 1

-9y = -5x + 1

y = 5/9x - 1/9

To do the opposite, take the original slope (5/9) and change the sign (-5/9).

To do the reciprocal, take the slope we changed (-5/9) and flip it as a fraction (-9/5).

This gives us a new slope of

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3 years ago

Tenths and hundredth

Marta_Voda [28]

19. No
20. No
21. Yes
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