Yes
It is a rational number because it can be expressed as an improper fraction in the form of -80/1
The positive square root of 80 is approximately 8.94. Since 8.94 is closest to 9, the number closest to the positive square root of 80 is 9.
No, because an integer is a whole number and it's opposite (negative or positive). The square root of 80 is not a whole number.
Well, lets see. First we have to divide 80 by 2 as such: 80/2 = 40. Then we square root 40, which leads us to our final answer of 6.32455532.
No, the square root of 6400 is 80, and 3200 squared is 10240000.
It is a rational number because it can be expressed as an improper fraction in the form of -80/1
The positive square root of 80 is approximately 8.94. Since 8.94 is closest to 9, the number closest to the positive square root of 80 is 9.
The square root of -6400 is not a real number because the square root of a negative number is not defined in the real number system.
No
An irrational number is a number which cannot be expressed as a fraction made of integers. These numbers generally have infinite decimals with no pattern to them whatsoever. The easiest way, I think, to make an irrational number is to take the square root of a number between the squares of your parameters, in this case between 64 and 81. Thus a number such as square root(72), which is 8.485281..., or square root(80), which is 8.944571..., will do nicely.
9
No, there aren't any square numbers between 70 and 80. From 70 to 80, no number has a perfect square root, so no square number exists between 70 to 80.
No, because an integer is a whole number and it's opposite (negative or positive). The square root of 80 is not a whole number.
A negative number cannot have a square root in basic mathematics. However, in more advanced mathematics, you will study complex numbers. And there you will find that the square roots of -80 are ± 8.944*i where i is the imaginary square root of -1.Incidentally, ± 8.944 are the square roots of +80.
no. 80 is a rational number
Square root of 81
Well, lets see. First we have to divide 80 by 2 as such: 80/2 = 40. Then we square root 40, which leads us to our final answer of 6.32455532.