Answer:
There are a couple different solutions to your equation:

![x=\sqrt[22]{\frac{13}{n}}](https://tex.z-dn.net/?f=x%3D%5Csqrt%5B22%5D%7B%5Cfrac%7B13%7D%7Bn%7D%7D)
![x=-\sqrt[22]{\frac{13}{n}}](https://tex.z-dn.net/?f=x%3D-%5Csqrt%5B22%5D%7B%5Cfrac%7B13%7D%7Bn%7D%7D)

Answer:
B. Anthracite Coal
Step-by-step explanation:
lowest form is peat, then lignite, then bituminous coal, then anthracite
Answer:
Step-by-step explanation:
1. The probability that your mail is delivered before 2 pm is 0.9, so the probability that the mail is delivered at 2 pm or after 2 pm (so not before 2 pm) is 1-0.9=0.1.
Remark: 0.9=9/10=90/100=90%, and 0.1 is 10%
2. Probability of the mail being delivered before 2 pm for 2 consecutive days is
3. take a look at the picture attached, the tree diagram is another method we could use.
Answer:
2
Step-by-step explanation:
Answer:
Wsp
Step-by-step explanation: