They are all sets that contain it.
It belongs to {-400},
or {-400, sqrt(2), pi, -3/7},
or {-400, bananas, France, cold}
or all whole numbers between -500 and -300,
or multiples of 5,
or negative composite numbers,
or integers,
or rational numbers,
or real numbers,
or complex numbers,
etc.
The real square roots of 400 are 20 and -20. This is because when you square both of these numbers, you get 400. In general, every positive real number has two square roots: one positive and one negative.
sqrt(-400) => sqrt(400 X -1) => sqrt(400) X sqrt(-1) => +/- 20 X 'i' (NB Small/lower case 'i' is the symbol for square root of '-1'. So the answer is +/-20i NB Mathemticians for centuries have pondered over a solution for the square root of '-1'. If you know the answer let the mathemtical world. know!!!!!!
negative 4
400 is a significant number because it is a square number as 20*20 = 400
400 is a number
The real square roots of 400 are 20 and -20. This is because when you square both of these numbers, you get 400. In general, every positive real number has two square roots: one positive and one negative.
Yes, it's 400.
sqrt(-400) => sqrt(400 X -1) => sqrt(400) X sqrt(-1) => +/- 20 X 'i' (NB Small/lower case 'i' is the symbol for square root of '-1'. So the answer is +/-20i NB Mathemticians for centuries have pondered over a solution for the square root of '-1'. If you know the answer let the mathemtical world. know!!!!!!
negative 4
700
409
400 is a significant number because it is a square number as 20*20 = 400
400 is a number
400
There is only one number that equals 400. The number is 400, and it's not a prime number.
4000/10 = 400
The least number that can be rounded to 400 (to the nearest 400) is 200.