Mathematics: Square root of 18 plus square root of 2 which statement is true about the expression? (1 point) it is rational and equal to 3. it is rational and equal to 4. it is irrational and equal to 3 multiplied by the square root of 2 . it is irrational and equal to 4 multiplied by the square root of 2 .

Square root of 18 plus square root of 2 which

Ответ:

jsh65bsbs

14.03.2022

$\sqrt{18} + \sqrt{2} \\ \\ 
= \sqrt{9*2}+ \sqrt{2} \\ \\ 
= \sqrt{9} \sqrt{2}+ \sqrt{2} \\ \\ 
=3 \sqrt{2}+ \sqrt{2} \\ \\ 
=4 \sqrt{2}$

Since square root of 2 is irrational the overall expression is also irrational. Fourth option gives the correct answer

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Ответ:

rubincain203

18.06.2022

Mathematics

Step-by-step explanation:

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Square root of 18 plus square root of 2 which statement is true about the expression? (1 point) it is rational and equal to 3. it is rational and equal to 4. it is irrational and equal to 3 multiplied by the square root of 2 . it is irrational and equal to 4 multiplied by the square root of 2 .

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