Answer:
I have 14 dollars. I went to the store to buy a book, and now I only have 3 dollars
Answer:
Step-by-step explanation:
5).
= ![\frac{1}{\frac{1}{x^9} }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Cfrac%7B1%7D%7Bx%5E9%7D%20%7D)
= ![x^{9}](https://tex.z-dn.net/?f=x%5E%7B9%7D)
6). ![\frac{1}{x^{-2}}=\frac{1}{\frac{1}{x^2} }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bx%5E%7B-2%7D%7D%3D%5Cfrac%7B1%7D%7B%5Cfrac%7B1%7D%7Bx%5E2%7D%20%7D)
= x²
7). ![x^{-6}=\frac{1}{x^6}](https://tex.z-dn.net/?f=x%5E%7B-6%7D%3D%5Cfrac%7B1%7D%7Bx%5E6%7D)
8). ![\frac{1}{x^{-7}}=\frac{1}{\frac{1}{x^7} }](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bx%5E%7B-7%7D%7D%3D%5Cfrac%7B1%7D%7B%5Cfrac%7B1%7D%7Bx%5E7%7D%20%7D)
= ![x^{7}](https://tex.z-dn.net/?f=x%5E%7B7%7D)
9). ![x^{-8}=\frac{1}{x^8}](https://tex.z-dn.net/?f=x%5E%7B-8%7D%3D%5Cfrac%7B1%7D%7Bx%5E8%7D)
10).
= ![\frac{1}{\frac{1}{x^{3}}}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Cfrac%7B1%7D%7Bx%5E%7B3%7D%7D%7D)
= x³
Any number that is divided by itself is equal to 1.
For example:
2/2 = 1
(1/2)/(1/2) = 1
400/400 = 1
The first on would be false because -1 is a negative number and 1.7 is a positive number and all positive numbers are greater than negative numbers so this would be false
9.8 is more than 8.9 so the second one would be false as well because 8 comes before 9