Base = 2 inches
Height = 8 inches
Area = b x h = 2 x 8 = 16
Perimeter = 2(8) + 2(2) = 20 inches
Since these are all like terms, you're essentially just adding and subtracting here.

Add
and
.

Then, subtract.

Your answer is
.
Answer:

And the standard error is given by:

And replacing we got:
![SE_[p]= \sqrt{\frac{0.06*(1-0.06)}{373}}= 0.0123](https://tex.z-dn.net/?f=%20SE_%5Bp%5D%3D%20%5Csqrt%7B%5Cfrac%7B0.06%2A%281-0.06%29%7D%7B373%7D%7D%3D%200.0123)
And we want to find this probability:

We can calculate the z score for this case and we got:

And using the normal distribution table or excel we got:

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 mean and standard error for the sample proportion with these formulas:

And the standard error is given by:

And replacing we got:
![SE_[p]= \sqrt{\frac{0.06*(1-0.06)}{373}}= 0.0123](https://tex.z-dn.net/?f=%20SE_%5Bp%5D%3D%20%5Csqrt%7B%5Cfrac%7B0.06%2A%281-0.06%29%7D%7B373%7D%7D%3D%200.0123)
And we want to find this probability:

We can calculate the z score for this case and we got:

And using the normal distribution table or excel we got:

Answer:
8. the length is 88/5cm or 17.6cm
Step-by-step explanation:
8.perimeter =2L + 2W
when you convert the width 42/5 = 8.4
so 52 = 2L + 2*8.4
52= 2L + 16.8
52 - 16.8 = 2L
35.2 = 2L
divide both sides by 2
L = 17.6cm