Z = (x-mu)/sigma or 3 = (x - 25)/6 or 18 = x - 25 or x = 42. So, for Z = 3, x = 42.
If: x2+16 = 25 Then: x = 3
32 + x = 259 + x = 25x = 25 - 9x = 16
1 times 75 equals 75.
x = 3
Z = (x-mu)/sigma or 3 = (x - 25)/6 or 18 = x - 25 or x = 42. So, for Z = 3, x = 42.
If: x2+16 = 25 Then: x = 3
3 x 8.3333333333333333333333333333333
z = (x-mu)/sigma So x = sigma*z + mu = 3m*(-3) + 25 = -9m + 25
25 - 3 - x - x - 2 = 4x20 - 2x = 4x20 = 6xx = 20/6 = 10/3
3 x 25 5 x 15
25 x 3
32 + x = 259 + x = 25x = 25 - 9x = 16
75 = 1 x 75, 3 x 25, 5 x 15, 15 x 5, 25 x 3, 75 x 1.
x2 - 6x = 16 ∴ x2 - 6x + 9 = 25 ∴ (x - 3)2 = 25 ∴ x - 3 = 25 ∴ x = 28
x = 3
1 times 75 equals 75.