6m + 20 = 9m - 4 24 = 3m m = 8
This question as written can be taken two ways: 9m + 6n - 3m + 7n = 6m + 13n, or (9m + 6n) - (3m + 7n) = 9m + 6n - 3m - 7n = 6m - n
z = (x-mu)/sigma So x = sigma*z + mu = 3m*(-3) + 25 = -9m + 25
3m + 15 = 45 3m = 30 m = 10
3m + 11n = 3
6m + 20 = 9m - 4 24 = 3m m = 8
This question as written can be taken two ways: 9m + 6n - 3m + 7n = 6m + 13n, or (9m + 6n) - (3m + 7n) = 9m + 6n - 3m - 7n = 6m - n
12m + 2n - 3m + 11n = 9m + 13n
3 meters. 9m2/3m Divide both sides by 1m 9m/3 Simplify 3m
If: 9m+2m = 33 Then: m = 3
18m^2 - 12m + 2 = 2(9m^2 - 6m + 1) you can apply the formula (a - b)^2 = (a^2 - 2ab + b^2) or if you don't remmember it, continue to work: = 2(9m^2 - 3m - 3m + 1) = 2[(9m^2 - 3m) - (3m - 1)] = 2[3m(3m - 1) - (3m - 1)] = 2[(3m - 1)(3m - 1)] = 2(3m - 1)^2
9m
9m
3m^2 - 9m = 0 factor out 3m 3m(m - 3) = 0 m = 0 -------- or m = 3 --------
9m - 6m = 21 Combine like terms: 3m = 21 Divide both sides by 3: m = 7
It is 9m^2 - 9 = (3m + 3)*(3m - 3).
z = (x-mu)/sigma So x = sigma*z + mu = 3m*(-3) + 25 = -9m + 25