Question

15.Which of the following is an irrational number?

2 points

a. √16

b. √(12/3)

c. √12
d.square root of 100

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Answer 1

Answer:

$\sqrt{16 } = 4$

$\sqrt{12 \div 3} = \sqrt{4} = 2$

$\sqrt{100} = 10$

here all numbers are rational but

$\sqrt{12}$

is not rational

hence it is irrational

Answer 2

Answer:

c

Step-by-step explanation:

irrational no. are opposite of rational no.

rational no. have no. in p/q form and rational no. are co- prime no.

co-prime no. are common factor of prime no.

example - 2 and 3 are prime no. factor of 2 is 1 ,2

and factor of 3 is 1 ,3 common factor is 1 . hence 2 and 3 are co-prime no.

a) √16 = 4 is a rational no.

b) √(12/3) = √4= 2 is a rational

d) √100 = 10 is a rational

last is option c

this will option c is answer