The slope is 2/3 because 3 - 1 = 2 and 0 - -3 = 3
Answer:
..A. is the answer. a2 + b2 = c2 is the formula used to find the hypotenuse (the longest leg)..
Step-by-step explanation:
He should use a sample size of 655.
We can use the formula
![n=\frac{z_{\alpha\2}^2\hat{p}(1-\hat{p})}{E^2}](https://tex.z-dn.net/?f=n%3D%5Cfrac%7Bz_%7B%5Calpha%5C2%7D%5E2%5Chat%7Bp%7D%281-%5Chat%7Bp%7D%29%7D%7BE%5E2%7D)
We find the z-value by first subtracting the confidence level from 1:
1 - 0.8 = 0.2
Divide this by 2:
0.2/2 = 0.1
Subtract this from 1:
1 - 0.1 = 0.9
Using a z-table (http://www.z-table.com) we find the z-score associated with this is 1.28.
Now we plug our information into our formula:
You use the less than simple. This one: <
Answer: is 75%
Step-by-step explanation:
Because you have to make sure you count each square then