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Shtirlitz [24]
3 years ago
9

Which of the following correctly describes the sum of two rational numbers?

Mathematics
1 answer:
Elena-2011 [213]3 years ago
8 0

Answer:

"The sum of two rational numbers is rational."  

By definition, a rational number can be expressed as a fraction with integer values in the numerator and denominator (denominator not zero). So, adding two rationals is the same as adding two such fractions, which will result in another fraction of this same form since integers are closed under addition and multiplication. Thus, adding two rational numbers produces another rational number.

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mart [117]

Answer:

180-43

Step-by-step explanation:

43 and x are supplementary which means they both should equal 180

8 0
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Find the sum of the first 10 terms if a(n) = n^2 - n +1
Elza [17]

Answer:

The formula to find the sum of the first n terms of our sequence is n divided by 2 times the sum of twice the beginning term, a, and the product of d, the common difference, and n minus 1. The n stands for the number of terms we are adding together.

3 0
3 years ago
Which of these best describes the asthenosphere inside of the earth's mantle?
nordsb [41]

Hello there

1) asthenosphere lies below lithosphere and part of uppermantle.

it's highly viscous and behaves plastic.

it lies approximately 70-150 km below surface depending which . (50km below oceanic crust and 150km below continental crust)

2) 1/2 '4 =1/16 (4 is to the power of 1/2)

hope this helps

thank you

Best Regards Queen Z

8 0
3 years ago
|BRAINLIEST|
Mekhanik [1.2K]

Answer:

<em>t</em><em>h</em><em>e</em><em> </em><em>c</em><em>o</em><em>r</em><em>r</em><em>e</em><em>c</em><em>t</em><em> </em><em>a</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em> </em><em>i</em><em>s</em><em> </em><em>C</em><em> </em><em>1</em><em>/</em><em>3</em><em>2</em><em> </em><em>I</em><em>b</em>

Step-by-step explanation:

hope it helps

3 0
4 years ago
Can I have the answer? I need this done but the topic really confuses me.
labwork [276]
The value of s = 227 degrees. You can determine this because the area of a triangle is always 180 degrees. Since it is s-47, you add 47 to 180. This equals 227. Plug the number in and you get correct answer.  227-47=180

Hope this helps!
7 0
4 years ago
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