Answer:
A) |x| + 1 B) |x| - 1 C) |x+1| D) |x-1|
Step-by-step explanation:
Just follow what I wrote for other questions and you'll be fine :D
Answer:
11. screenshot attached
12.screenshot attached
13. C
14. B
15. D
16. A
Step-by-step explanation:
Answer:$68.17
Step-by-step explanation:52.60 times 1.08= 56.81
56.81 times 1.20=68.17
Answer:
The slope is <u>-</u><u>1</u><u> </u>and the y-intercept is <u>-</u><u>1</u><u> </u>?
Answer:
Step-by-step explanation:
Data given
20 13 21 18 19 22 19 15 12 12 18 21
We can calculate the sample mean and deviation with the following formulas:
And we got:
represent the sample mean
population mean (variable of interest)
s=3.61 represent the sample standard deviation
n=12 represent the sample size
Confidence interval
The confidence interval for the mean is given by the following formula:
(1)
The degrees of freedom are given by:
Since the Confidence is 0.90 or 90%, the significance is and , the critical value would be given by
Now we have everything in order to replace into formula (1):