Answer:
52.5 ft squared
Step-by-step explanation:
You just multiply each side to get volume.
Answer: (0.465, 5.535)
Step-by-step explanation:
Formula to calculate the confidence interval (<em>when population standard deviation is unknown</em>) is given by :-

, where
= sample mean.
s= sample standard deviation.
n= Sample size.
= critical value
By considering the given information , we have
s=0.75
n= 9
Significance level =
[1-0.90=0.1]
By using students' t distribution -table , the critical value for 95% confidence level :

[Note: degree of freedom = n-1]
Now, the 90% confidence interval for the true mean weight of these Southern California avocados will be :




Hence, the required confidence interval =(0.465, 5.535)
You can subtract 7t from both sides of the equation. This gives
... 7t -7t +3 = 8 +7t -7t
... 3 = 8 . . . . . an obvious FALSE mathematical statement
There is no value of t that will make this statement true.
The given equation has NO SOLUTION.
Answer:
a
Step-by-step explanation: