100 times because it jumped 2place values
Answer:
Step-by-step explanation:
In , notice the third term of the quadratic in standard form is formed entirely by .
Therefore, in :
.
Now that we found , we must find . The first term of the quadratic in standard form is formed entirely by . Therefore:
.
In order to find the reciprocal of 10 1/2 you have to figure out the improper fraction. the improper fraction for that equation would be 21/2. reciprocal means opposite, so when you reciprocal a fraction, you have to put the numerator on the bottom and the denominator on the top. so, 21/2 is 2/21. 2/21 is the reciprocal for 10 1/2 :))
Answer:
Step-by-step explanation:
Notation
represent the sample mean
population mean (variable of interest)
s represent the sample standard deviation
n represent the sample size
Solution to the problem
The confidence interval for the mean is given by the following formula:
(1)
For this case the 9% confidence interval is given by:
We can calculate the mean with the following:
And we can find the margin of error with:
The margin of error for this case is given by:
And we can solve for the standard error:
The critical value for 95% confidence using the normal standard distribution is approximately 1.96 and replacing we got:
Now for the 98% confidence interval the significance is and the critical value would be 2.326 and then the confidence interval would be:
2x/3=8
2x=24
x=12
It takes Molly 12 minues to run one mile.