Answer:
A, B, D are equations representing a linear function
Step-by-step explanation:
All linear functions have an equation like the following: y=mx+b, where m is the slope and b is an offset.
A. y=x-4, m=1 and b=-4
B. y=x+4, m=1 and b=4
D. y=x+7, m=1 and b=7
The third eq dont behave like a linear function since there is quadratic term on one side of the equation, this is not a linear function
Answer:
Step-by-step explanation:
If we had 2 independent samples with population variances unknown and equal and we want to compare the population mean between the both groups, the test statistic will be:
Where 
So, the t-student has degrees of freedom
Where 
and 
are the means of the groups, 
and 
are the size of the samples and 
and 
are the sample variances.
Answer:
x would be 1
Step-by-step explanation:
Answer:
A. Both are correct
Step-by-step explanation:
Answer:
540
Step-by-step explanation:
