Answer:
95% confidence interval: (2.784,3.176)
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 25
Sample mean = $2.98
Standard error = $0.10
Alpha = 0.05
95% confidence interval:
Putting the values, we get,
-4b-8 + -1b^2 +2b^3
-4(-2)-8+-1(-2)^2+2(-2)^3
8-8+2^2-4^3
4-64
60
Answer:
^4
−
9
^
3
+
2
7
^2
−
4
0
+4
8
Step-by-step explanation:
Answer:
No solution
Step-by-step explanation:
The first equation is 
The second equation is
.
Put the first equation into the second one.
.
.
.
.
This is not TRUE.
Therefore the system has no solution
Answer:
experimental, 3
Step-by-step explanation: