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ElenaW [278]
3 years ago
9

rove the following statement directly from the definition of rational number. The difference of any two rational numbers is a ra

tional number. Proof: Suppose r and s are any two rational numbers. By definition of rational, r = a b and s = c d for some ---Select--- a, b, c, and d with ---Select--- . Write r − s in terms of a, b, c, and d as a quotient of two integers whose numerator and denominator are simplified as much as possible. The result is the following. r − s = Both the numerator and the denominator are integers because ---Select--- . In addition, bd ≠ 0 by the ---Select--- . Hence r − s is a ---Select--- of two integers with a nonzero denominator, and so by definition of rational, r − s is rational.

Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

Step-by-step explanation:

Question:

Prove the following statement directly from the definitions.

The difference of any two rational numbers is a rational number.

Answer, see attachment for proof.

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If the area of square 3 is 80 cm² and thee area of square 2 is 100 cm², what is the area of square 1?
swat32

Answer:

260 cm²

Step-by-step explanation:

Please see the attached picture for the full solution.

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The graph of which function has an amplitude of 3 and a right phase shift of ?
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If the tip varies directly with the number of guests, which equation represents the relationship between the tip, t, and the num
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3 years ago
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6x10 to the 2 power + 45
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Answer:

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Choose all options that are expressions 6+5w 3-16v 4v+1 2v=0 18=v 7-v
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Answer:

The expressions here are;

6 + 5w

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Step-by-step explanation:

Here, out of the given set, we want to choose all options that are expression.

To do this, we should understand that expressions do not have the equality sign like equations

So expressions are those in the set in which we do not have an equality sign

The right answer is thus;

6 + 5w

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