Question

PLEASE HELP ME ASAP!!!!!!!!

Which of the following is an irrational number?

A) square root 25
B) square root 36
C) square root 50
D) square root 64

Answer 1

C

Explanation:

An irrational number cannot be expressed in the form

`(a)/(b)` where a and b are integers

A

`√(25)` = ± 5 ← both integers

B

`√(36\\)` = ± 6 ← both integers

C

`√(50\\)` = 5
`√(2\\)` ←
`√(2)` is irrational

D

`√(64\\)` = ± 8 ← both integers

Answer 2

50

Step-by-step explanation: 50 is the only number that you can't multiply by two of the same whole number.