Yes. √9 = 3 which is a natural number, that is can be expressed in the form a/b where a and b are both integers. 9 is a perfect square (square of an integer). In general, square root of a non-perfect integer would be irrational.

When the square root of a number is a whole number, this number is called a perfect square. 9 is a perfect square because /begin{align*}/sqrt{9}=3/end{align*}. Not all square roots are whole numbers. Many square roots are irrational numbers, meaning there is no rational number equivalent.

Is 9 a rational number? 9 is a rational number because it can be written in the form of ratio such as 9/1.

27 is a rational number because it can be expressed as the quotient of two integers: 27 ÷ 1.

Is the square root of 27 rational or irrational? The square root of 27 is a rational number if 27 is a perfect square. It is an irrational number if it is not a perfect square. Since 27 is not a perfect square, it is an irrational number.

Is the Square Root of 75 Rational or Irrational? The square root of 75 is an irrational number where the numbers after the decimal point go up to infinity. √75 = 8.660. √75 cannot be written in the form of p/q, hence it is an irrational number.

Loading when this answer was accepted… This is the inverse function of an. Hence n√a means, you look for a number b, which when multiplied n times with itself results in a. For instance: We know that 23=8, so 3√8=2, 5√−1=−1 because (−1)5=−1. 4√3≈1.31607 because 1.316074≈3.

used to indicate a root is called a radical and is therefore read “x radical n,” or “the nth root of x.” In the radical symbol, the horizontal line is called the vinculum, the quantity under the vinculum is called the radicand, and the quantity n written to the left is called the index.

Drivers should slow down or stop so they can yield the right-of-way to vehicles on the other road. If a driver sees this sign facing them, they are driving the wrong way on a one-way street, and directly opposing the flow of traffic.