3 years ago

Is the sum of 3√2 and 4 √2 rational or irrational? Explain your answer.

Mathematics

1 answer:

djverab [1.8K]3 years ago

8 0

The answer is irrational. Any irrational number doubled is still irrational.

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2 5/7+4 3/5= help please

Ainat [17]

Answer:

$7\frac{11}{35}$

Step-by-step explanation:

$2\frac{5}{7}+4\frac{3}{5}$

add the whole numbers

$2+4=6$

combine the fractions

$\frac{5}{7}+\frac{3}{5}$

LCM is 35 because 7 * 5 =35

$\frac{5}{7}=\frac{5\cdot \:5}{7\cdot \:5}=\frac{25}{35}$

$\frac{3}{5}=\frac{3\cdot \:7}{5\cdot \:7}=\frac{21}{35}$

$\frac{25}{35}+\frac{21}{35}=\frac{25+21}{35}$

$=\frac{46}{35}$

change the improper fraction into mixed number

$6+1\frac{11}{35}$

$=7\frac{11}{35}$

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Answer:

Step-by-step explanation:

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2 years ago

The sun of two numbers is 36. The larger number is 18 more than the smaller number. What are the numbers?

Elis [28]

Answer:

Step-by-step explanation:

a+b=36

lets name the 2 numbers a,b

b=a+18

a+a+18=36

2a=36-18

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3 years ago

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pav-90 [236]

Below length is square root of 2*3
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Answer:

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