Y=-9x+10 is the equation solved for y.
Answer:
The confidence interval at a 90% confidence level is ($43.79, $48.21).
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 46 - 2.21 = 43.79
The upper end of the interval is the mean added to M. So it is 46 + 2.21 = 48.21.
The confidence interval at a 90% confidence level is ($43.79, $48.21).
Answer:
the answer is 4
Step-by-step explanation:
Answer:
I believe the answer is D: 300 inches
Step-by-step explanation:
This might be incorrect, but here's how I see the answer:
First I found the perimeter of one square.
2 + 3 = 5^2= 10
10 inches is the perimeter of one square.
Then, since there is 30 rectangles, and each perimeter is 10 inches long, then you would simply need to multiply the two numbers.
30 * 10 = 300 inches of red thread will be needed.