I'm going to assume the 4 and 3 are exponents and the expression is .
The first step is to separate the coefficients of 3 and -6 from the variables and to multiply those as normal:
As for the variables, you want to recognize that means and means , so
In total, there are 7 a's being multiplied, so
Putting this all together, we have:
For a normal distribution about
68% corresponds to one standard deviation either side of the mean so the required scores are
64 to 80.
Answer:
x = 4
Step-by-step explanation:
2(4x-12)=8
4x-12=4
4x=16
x=4
Answer:
a) 49.41
b) not quite sure
Step-by-step explanation:
sorry
The number I pick between 30 and 100 is 72.