Answer:
Step-by-step explanation:
![8x^4+2x^3-x+3-5x^3+7x+2\\ \\ 8x^4-3x^3+6x+5](https://tex.z-dn.net/?f=8x%5E4%2B2x%5E3-x%2B3-5x%5E3%2B7x%2B2%5C%5C%20%5C%5C%208x%5E4-3x%5E3%2B6x%2B5)
Answer:
80%
Step-by-step explanation:
So you basically, just make it a ratio. Since a percentage is out of 100, just make the 5 into 100. To get 5 to 100, you times 20. Then you do the same thing to the 4 which you get 80.
The answer is graphic h(x)=2x.
Look:
h(x)=f(x)+g(x)=(x-6)+(x+6)=x+x+6-6=2x
Then
h(x)=2x
Good luck!
M.
Answer:
$109.99
Step-by-step explanation:
You just have to multiply 10x10.99
Answer:
? = -2
Step-by-step explanation:
The division law of exponents states that when two numbers with the same base are divided, the exponents will subtract:
![\frac{x^{a} }{x^{b} } =x^{a-b}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E%7Ba%7D%20%7D%7Bx%5E%7Bb%7D%20%7D%20%3Dx%5E%7Ba-b%7D)
This means that the answer is:
![\frac{2^{-8} }{2^{2} } =2^{-8-2}=2^{-10}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5E%7B-8%7D%20%7D%7B2%5E%7B2%7D%20%7D%20%3D2%5E%7B-8-2%7D%3D2%5E%7B-10%7D)
Now we just need to convert the answer into the form the question needs.
The power of a power exponent law states that when an exponent is raised to an exponent, the exponent are multiplied, so:
![(x^{a})^{b} =x^{ab}](https://tex.z-dn.net/?f=%28x%5E%7Ba%7D%29%5E%7Bb%7D%20%3Dx%5E%7Bab%7D)
This also means that ![ab/a=b](https://tex.z-dn.net/?f=ab%2Fa%3Db)
Since our <em>ab </em>is -10, we just need to divide it by the <em>a</em>, which is 5, to get our <em>b</em>, which is the ?
-10/5=-2
Therefore the ? = -2
Hope this helped!