Answer:
315 newspapers in 6 hours
Step-by-step explanation:
The answer is 315 because 420 divided by 8 is 52.5 and 52.5 times 6 is 315.
I hope this helps you
B 90 clockwise rotation
Answer:
The 90% confidence interval for the percentage of people the company contacts who may buy something is between 10.82% and 14%
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
For this problem, we have that:

90% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 90% confidence interval for the percentage of people the company contacts who may buy something is between 10.82% and 14%
First, you have to find which two numbers go into 24 when multiplied.
24=
6×4
2×12
24×1
-6×4
-2×12
-24×1
Then you add each set of numbers together.
6+4=10
2+12=14
24+1=25
-6+4=-2
-2+12=10
-24+1=-23
6+(-4)=1
2+(-12)=-10
24+(-1)=23
Then you find which set when added makes 4. Since none of these are 4, it is no solution.