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Rzqust [24]
2 years ago
14

Which of the statements using operations on rational or irrational numbers always results in a rational number?

Mathematics
1 answer:
-BARSIC- [3]2 years ago
8 0
<h3>Hm a irrational number is a number like this:</h3>

1.999999\inf

So adding a rational number, like 2, it would be irrational still:

2+1.999999\inf=3.999999\inf

That being said, answer C is wrong

Now, what is 2/2? Or 4/1? Whole numbers are one of the 3 types of rational numbers.

2\ /\ 2=1\\\\4\ / 1=\ 4

Thus the answer appears to be D

Now lets use the process of elimination to double check the answer:

The wording of your question is what will help us out here:

Which of the statements using operations on rational or irrational numbers <u>always results </u>in a <u>rational number?</u>

Because of that, any of the choices that involve a irrational number can result with another irrational number like so:

a)\ 1.999\inf+ 1.999\inf=3.888\inf\\\\b)\ 2.999\inf / 1.999\inf= 1.50025\inf

And there you go, the only answer that hasn't been proven wrong is answer D.

<h3>Now, if you like this answer and would like to see more please make sure to Like, Comment, and Rate this answer! Also, be sure to send me a friend request, I'm always up for a Challenge!</h3><h2>Thanks!</h2>
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Answer:

  diameter = m - c

Step-by-step explanation:

In ΔABC, let ∠C be the right angle. The length of the tangents from point C to the inscribed circle are "r", the radius. Then the lengths of tangents from point A are (b-r), and those from point B have length (a-r).

The sum of the lengths of the tangents from points A and B on side "c" is ...

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Now, the problem statement defines the sum of side lengths as ...

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and, of course, the diameter (d) is 2r, so we can rewrite the above equation as ...

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The diameter of the inscribed circle is the difference between the sum of leg lengths and the hypotenuse.

5 0
3 years ago
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Your answer to this is:
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3 0
3 years ago
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aliya0001 [1]
The area of a trapezoid with base lengths 7 in and 19 in is given by
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_____
It can also be figured by adding the area of the 7 in square (49 in²) to the area of the 7×12 in right triangle (42 in²).
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Step-by-step explanation:

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