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:
30.5 hours
Step-by-step explanation:
If he were to average 8 hours PER week for 4 weeks, his total sum would have been:
8 * 4 = 32 hours
But he fell short of it. By how much?
By
hours!
So, he practiced 1 1/2 hours LESS THAN 32 hours, so his practice time is:

So, <u>he practiced 30.5 hours in the 4 weeks</u>
Answer:
see below
Step-by-step explanation:
20x^3+8x^2-30x-12
Factor out the greatest common factor 2
2 (10x^3+4x^2-15x-6)
Then factor by grouping
2 ( 10x^3+4x^2 -15x-6)
Factor out 2 x^2 from the first group and -3 from the second group
2 ( 2x^2( 5x+2) -3( 5x+2))
Factor out ( 5x+2)
2 ( 5x+2) (2x^2-3)
The 2 can go in either term to get binomials
( 10x +4) (2x^2-3)
or ( 5x+2) ( 4x^2 -6)
The answer is 6 positive tiles.
Yes! You’re on the right track! You followed it perfectly!
Parentheses
Exponent
Multiplication
Division
Addition
Subtraction
Well done!