ANSWER
The 4th term is -27
EXPLANATION
The sum of the first n-terms of an arithmetic sequence is
It was given that,
The n-term is given by:
We substitute n=4 to get,
The confidence interval formula is computed by:
Xbar ± Z s/ sqrt (n)
Where:
Xbar is the mean
Z is the z value
S is the standard deviation
N is the number of samples
So our given are:
90% confidence interval with a z value of 1.645
Sample size 40, 45
Mean 180, 179
Standard deviation 2, 4
So plugging that information in the data will give us a
confidence interval:
For 1:
Xbar ± Z s/ sqrt (n)
= 180 ± 1.645 (2 / sqrt (40))
= 180 ± 1.645 (0.316227766)
= 180 ± 0.520194675
= 179.48, 180.52
For 2:
Xbar ± Z s/ sqrt (n)
= 179 ± 1.645 (4 / sqrt (45))
<span>= 179 ± 1.645 (0.596284794)</span>
therefore, the answer is letter b
Answer:
Step-by-step explanation:
The answer is The cook need 1/12
Why??
3/4 -2/3 = 1 /12
Therefore , the cook need 1/12 heheh Send Love:#
Answer: 5 to the right and 2 down (top right corner)
Start at the "birds" point. Moving 5 units to the right will get you directly above the "reptiles" point. Then move 2 units down to actually get to the "reptiles" point.
The answer is
D: 24
Because 148 times 24 equals 3552
