Answer:
The confidence interval for this case would be (216.589, 223.411)
Step-by-step explanation:
Information given
represent the sample mean
population mean
s=12 represent the sample standard deviation
n=50 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:
The Confidence level is 0.95 or 95%, the significance is 
and 
, the critical value for this case is 
And replacing we got:
The confidence interval for this case would be (216.589, 223.411)
y=8
Step-by-step explanation:
y=x+5 x=3
y=3+5
therefore
y=8
What is the decimal to this fraction
Mutiply them all out, you'll get quadratic equations. Replace x's with numbers and then you'll be able to draw the graphs
Answer: 5
Step-by-step explanation: When there is more than one term inside the absolute value, we first simplify inside the absolute value.
So here, our first step is to add -15 + 10 which is -5.
So we have ║-5║.
Now remember that absolute value means <em>distance from zero</em> on a number line. Since -5 is 5 units from zero, the absolute value of -5 is 5.
So the absolute value of -15 + 10 is 5.
