3 years ago

Rationalize the denominator √7x/75

Mathematics

1 answer:

Leokris [45]3 years ago

7 0

Do what the problum ids telling you than apply it to the math and you will always get the right answer

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What is a correct first step in solving the inequality –4(3 – 5x)≥ –6x + 9?

Maksim231197 [3]

Hello,
the first step should be to distribue:
-4(3-5x)= -12+20x

Teh resolution may be:

-4(3-5x)>=-6x+9
==>-12+20x>=-6x+9
==>20x+6x>=9+12
==>26x>21
==>x>=21/26

But an other way may be used:

-4(3-5x)>=-6x+9
==>3-5x<= -6x/(-4)+9/(-4)
==>-5x-3/2 x<=-9/4 -3

==>-13/2 x <=-21/4

==>x>= -21/4 *(-2/13)
==>x>=21/(2*13)
==>x>=21/26

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3 years ago

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What is the answer to this equation: 7.4 - 9 - 2r =18

lorasvet [3.4K]

We can get the answer to this equation by solving for the variable (r).

7.4 - 9 - 2r = 18

We want to get r on one side, so we want to push everything else to the other side.

-2r = 18 - 7.4 + 9

-2r = 19.6

2r = -19.6

r = -9.8

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3 years ago

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In the fraction 35/10 what is the product that lies between

RUDIKE [14]

The result of the fraction is 3.5

we can calculate this like this:
$\frac{35}{10} = \frac{5*7}{2*5} = \frac{7}{5}=3.5$

I think that the question is asking between which two natural numbers the result lies, and the result is 3 and 4: it's bigger than 3 and smaller than 4

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The angle measures 30°, 60°, 120°, and 150° are written on

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I think the answer is d

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