Answer:1+3x+9+x+8+2x= 6x+9
so =3(x+3)
Step-by-step explanation:
Answer: 14 1/15
Step-by-step explanation:
4 2/5 + 9 2/3 = 13 + 6/15 + 10/15 = 13 + 16/15 = 14 1/15
Answer:
The marginal error is 2.355
Confidence interval is 
The LB and UB are 34.645 and 39.3555 respectively.
Step-by-step explanation:
Consider the provided information.
n = 49, s = 8.2 c = 95%and 
Degree of freedom is: n-1 = 49-1 = 48.

From the table 
Marginal error is:





Hence, the marginal error is 2.355.
Part (B)
95% confidence interval estimate



Thus, the LB and UB are 34.645 and 39.3555 respectively.
Answer:
1.68
Step-by-step explanation:
14.88/8=1.68