It is a rational number
No. An irrational number cannot be expressed as a/b where a and b are integers, b not zero. 18 = 18/1 = 36/2 = -36/-2 etc.
irrational
18 and 20
sqrt(18) = 3*sqrt(2) is an irrational number.
Yes it's a real number but it is an irrational number because it can't be expressed as a fraction.
yes it is an irrational numberNo because 18 is a rational number
The square root of 18 is an irrational number because it cannot be expressed as a fraction.
It is neither because the square root of -18 is an imaginary number but the square root of 18 is irrational
Yes
It is a rational number
No. An irrational number cannot be expressed as a/b where a and b are integers, b not zero. 18 = 18/1 = 36/2 = -36/-2 etc.
No. √324 = 18 = 18/1 = a rational number.
irrational
18 and 20
sqrt(18) = 3*sqrt(2) is an irrational number.
No. It can be written as a fraction, so it is rational.