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3 years ago

Simplify the complex fraction: (49-x^2)^1/2 + 9x^2(49-x^2)^-1/2 / 49-x^2

1 answer:

3 0

[(49 - x^2)^(1/2) + 9x^2(49 - x^2)^(-1/2)] / (49 - x^2)
= (49 - x^2)^(-1/2) * [(49 - x^2) + 9x^2 * 1] / (49 - x^2), via factoring
= (49 + 8x^2) / [(49 - x^2) (49 - x^2)^(1/2)]
= (49 + 8x^2) / (49 - x^2)^(3/2).

I hope this helps!

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ASAP

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The table below is the required sample space of the to fair die

From the above table

The sample space contain 36 outcomes

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1 year ago

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2 years ago

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Arlecino [84]

Alright so turn 3/4 into a decimal.
3/4 =.75

We need to set up an equation. To do that are need to give boys and girls their own variables.

Girls= X

And since there is 3/4 as many boys
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Now we know the sum of boys and girls equals 35
X+.75X=35

X+.75X=1.75X
Now we have 1.75X=35

Divide by 1.75 and get
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Now plug 20 into the equations got from before.
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Your Answer:
15 boys
20 girls

You can check
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3 years ago

Read 2 more answers