5*root(21^2) = 5*21 = 105
The two square numbers that total 85 are 64 and 21. The square root of 64 is 8, and the square root of 21 is approximately 4.58. When you add 64 and 21 together, you get 85.
21.
No, 441 is though (it is 21 squared)
It is y^2 or y squared
The prime factors of 21 are 3 x 7, so the prime factors of 21 squared are 32 x 72. The factors of 21 squared are 1, 3, 7, 9, 21, 49, 63, 147, and 441.
3a squared b
21 km squared
7 The dimension you provide is not a squared dimension but a linear dimension. There are no squared dimensions in a linear dimension. There are 7 linear yards in 21 linear feet, but no squared yards.
5*root(21^2) = 5*21 = 105
21
21
21
The two square numbers that total 85 are 64 and 21. The square root of 64 is 8, and the square root of 21 is approximately 4.58. When you add 64 and 21 together, you get 85.
6x2-5x-21 = (3x-7)(2x+3)
112 - 102 = 21
21.