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2 years ago

Does anyone know this ?

Mathematics

2 answers:

vodomira [7]2 years ago

5 0

Answer:

Always

Step-by-step explanation:

If the irrational parts of the numbers have zero sum, the sum is rational. If not, the sum is irrational. It is true, for example, for 2 7, 3. It is false, for example, for3+2 5,−2 5 .

Kryger [21]2 years ago

4 0

Answer:

always

Step-by-step explanation:

Rational numbers can be expressed as a fraction of two integers. So, adding two rationals is the same as adding two such fractions.

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Alika [10]

0=$5
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3=$11
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2 years ago

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ser-zykov [4K]

Answer:

a)8

b)13

Step-by-step explanation:

a) ar = c

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4^2+7^2=c^2

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LA and B are vertical angles. If mZA = then find the value of x. (7x – 27) and m B = (3x + 29)°,

zhuklara [117]

we know that

Vertical angles are congruent angles

that means

substitute the given values

(7x – 27)=(3x + 29)

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part b)

We know that

Supplementary angles are angles that their sum is equal to 180 degrees

A+B=180

substitute the given values

5x+25+x+17=180

solve for x

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