Answer:

Step-by-step explanation:
Important Information:
Perimeter of rectangle=
Method:
The first step to work this out is to multiply the width of 85 by 2, this gives you 170.This is because a rectangle has two sets of equal sides. This means that there two widths.
The next step is to subtract 170 from the perimeter of 364, this gives you 194. This is because the formula for the perimeter of a rectangle is
. This means that in order to isolate the values of the lenght we must subtract the values of the width.
The final step is to divide the value of 194 by 2, this gives you 97. This is because that is the value for 2*the length. That means in order to work out the value of 1 you would need to divide by 2.
Step By Step:
1) Multiply 85 by 2.

2) subtract 170 from 364.

3) Divide 194 by 2.

Answer:
E) .0863
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Solution to the problem
For this case we can find the sample proportion for each observation with the following formula:

Where X represent the number of returns and n =100 for each case since the standard value used. Using the last formula we got:










And now witht those values we can find the sample mean of proportions with the following formula:

And we can find the standard error with the following formula:

So then the best option on this case is given by:
E) .0863
Answer:
y = -2x - 19
Step-by-step explanation:
Slope-intercept form: y = mx + b
2x + y = -19
Subtract 2x from both sides;
y = -2x - 19
You have to get y by itself. Divide by 7 on both sides to get 1.43x-11=y. Hope this helps! ;)
3x9x10^1
27x10^1
27x100
2700