Which of these numbers is irrational?

Mathematics

2 answers:

saw5 [17]4 years ago

6 0

Sqrt16=4
sqrt2=irrational (meaning nevereneding and never repeating)
sqrt9=3
sqrt49=7

answer is B

Lorico [155]4 years ago

3 0

If you do the square root of 16, you get 4 (4*4=16), so this is rational
If you do the square root of 9, you get 3 (3*3=9), so this is rational
If you do the square root of 49, you get 7 (7*7=49), so this is rational
If you do the square root of 2, you get 1.4142....., so this is irrational, since it keeps on repeating
So your answer is B. sq rt 2

Hope this helps!

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