Q:
# What is the square root of 27?

**The square root of 27 is 5.19615242271.** The number 27 is not a perfect square, so it does not have an exact square root. Numbers such as 36, 49 and 121 are perfect squares and have exact square roots.

The square root of a number can be a positive number or a negative number. For instance, the square root of 25 is 5 or -5; this is because the square of a negative number is a positive number. The square of -5 is written as (-5) x (-5), and this gives 25. Similarly, the square of 5 is written as 5 x 5 and this also gives 25. Numbers that are not perfect squares such as 22, 30, 45 and 50 have their square roots as a decimal fraction.

Learn more about Exponents-
Q:
## What is the square root of 30?

A: The square root of 30 is 5.47. To determine the square root, plug the numbers into the formula x times x equals y, where x is the square root of y. Pluggin... Full Answer >Filed Under: -
Q:
## What is the square root of 54?

A: The principal (positive) square root of 54 is 7.35 to two decimal places. There is also a negative square root, which is -7.35 to two decimal places.... Full Answer >Filed Under: -
Q:
## What is the square root of 18 in simplified radical form?

A: The simplified radical form of the square root of 18 is written as 3 times the square root of 2. The simplified radical form of a square root can be found ... Full Answer >Filed Under: -
Q:
## What are exponents with fractions?

A: If an exponent is a fraction, such as y^1/n, the correct operation is to take the nth root of the base number y. For example, 27^1/3 is the same thing as t... Full Answer >Filed Under: