3 years ago

Could someone help me with this question I’ve been stuck on it for 20 minutes

Mathematics

1 answer:

Mila [183]3 years ago

4 0

11 + 13 = 24
4x = 24
x = 6

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Is ( square root 12 -4)(4+square root 12) rational or irrational

Ilia_Sergeevich [38]

Remember
(a-b)(a+b)=a²-b²

we can rewrite what we were given into
$( \sqrt{12}-4)( \sqrt{12}+4)=( \sqrt{12})^2-(4)^2=12-16=-4$
definitely rational

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3 years ago

Two years ago there were 6 grams of a radioactive substance. now there are 5 grams. how much will remain 2 years from now?

Gnesinka [82]

The quantity of the radioactive material which would remain 2 years from now is; 4 grams.

<h3>What is the quantity remaining in 2 years?</h3>

Since, it follows from the task content that after two year, the quantity of the radioactive substance decrease by 1 gram. Consequently, it follows from proportion that the quantity remaining in 2 years from now is; 5-1 = 4 grams.

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2 years ago

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g100num [7]

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3 years ago

A company offered one half of its employees a bonus if the production of light bulbs increased by 20%. The other half of the emp

Katen [24]

Answer:
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3 years ago

The length of the hypotenuse of a right triangle is 145 units. The length of one leg of the triangle is 144. Mike wrote the foll

bearhunter [10]

I guess a lot of formatting is missing on your question, so these are the correct steps: using the inverse Pythagorean theorem, we know that the length of the missing side is the square root of the difference of the squares of the hypotenuse and the other leg.

Let x be the length you're looking for, we have

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So, it looks like Mike's missing the last step: what he found is the square of the missing leg's length, not its actual length.

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4 years ago