Answer:
16. something
Step-by-step explanation:
Answer:
She should use the formula
to find a diameter of 16 inches.
Step-by-step explanation:
The circunference of a circle is given by:
![C = 2\pi r](https://tex.z-dn.net/?f=C%20%3D%202%5Cpi%20r)
In which r is the radius, which is half the diameter. So, it can also be given by the following formula:
![C = 2\pi \frac{d}{2} = \pi d](https://tex.z-dn.net/?f=C%20%3D%202%5Cpi%20%5Cfrac%7Bd%7D%7B2%7D%20%3D%20%5Cpi%20d)
In which d is the diameter.
Which formula should Maria use to help her find the diameter of the rug?
She should use this formula:
![C = \pi d](https://tex.z-dn.net/?f=C%20%3D%20%5Cpi%20d)
Since the circunference is 50.24 inches, the diameter will be of:
![d = \frac{C}{\pi} = \frac{50.24}{\pi} = 16](https://tex.z-dn.net/?f=d%20%3D%20%5Cfrac%7BC%7D%7B%5Cpi%7D%20%3D%20%5Cfrac%7B50.24%7D%7B%5Cpi%7D%20%3D%2016)
3days=3chapters so he would have to read for 8 days
Subtract the given score x from the mean µ and divide it by the standard deviation σ :
z = (x - µ) / σ = (302 - 300) / 20 = 0.1
Answer:
107
Step-by-step explanation:
Using PEMDAS (or GEMDAS), we know which things to solve for first and which to not.
In the parenthesis there is an exponent. We have to solve that fist and 10^2 is 100, so we end up with (3+100)+4.
It doesn't really matter what order we do now because adding things in different orders doesn't change the outcome. 3+100+4=107.