The square root of 20 is an irrational number
Try taking the square root. The square root of a positive integer can only be: * A whole number, in which case it is of course rational, or * Irrational.
is the square root f 20 irrational or rational
The square root of 20 is: ± 4.472136The square root of 20 is ± 4.472136 (to 7 sf).A square root of a number is the number that when multiplied by itself equals the given number.
If you mean the square root is 20, the answer is 400. If you mean the square root of 20, the answer is about 4.47.
The square root of 20 is an irrational number that can be expressed as 2 times square root of 5
42 is 16, less than 20 52 is 25, more than 20. so, 20 is not a perfect square, and does not have an integral square root. But, the square root of any integer is either an integer itself, or irrational. So, square root 20 is irrational
20 is not the square of an integer, the square root of 20 is approximately equal to 4.472.
Because the Square Root of negative 1 = i (The imaginary square root of negative 1.) and where if the square root of one number and of another number are multiplied together, the answer is equal to the square root of the two numbers combined. (Square root of 8 times the square root of 5 equals the square root of 40.) So... √(-20) =√20×√(-1) =√4×√5×i =2i(√5) The answer is 2i times the square root of 5. square root (-20) = square root (-1) x square root (20) square root (-20) = i x 4.47213595 square root (-20) = 4.47213595 i
square root of 20 = square root of 4X5=square root of 4 X square root of 5=2*square root of 5.
It is 2*sqrt(5).
The square root of 75 is 8.66 and the square root of 20 is 4.47.
- (400^.5) = -(20) = -20 you just do the square root of the number, and attach the negative in front. and if you ever include the negative inside the square root, you'd have to deal with i, which is an imaginary number that signifies the square root of negative 1.
Yes.... look at the number 20. It's a composite and it does have a square root.
square root of 20 = square root of 4 * square root of 5. square root of 4 = 2, so your answer is 2 square root of 5.
the square root of 20 in it's simplest form is ^2 square root of 5
-20/14 is a rational number
The square root of 400 is 20. 20 times 20 is 400. * * * * * -20 is also a square root of 400.
Square root of 400 simplified is 20.
Square root of 20 is 2*SQRT(5) or approx. 4.472 Square root of 40 is 2*SQRT(10) or approx. 6.325
2020^2 = 400400 is a perfect square.......perfect square  noun Mathematics .1.a rational number that is equal to the square of another rational number.2.a polynomial that is the square of another polynomial.Origin:1935-40
The square root of 20 simplified is ±4.5
The square root of 20 is simplified as: ± 4.5