Answer:
The value of the Rational expression when
is: ![-7](https://tex.z-dn.net/?f=-7)
Step-by-step explanation:
For this exercise is important to remember:
- When a negative number is raised to an even power, the result will be positive.
- The multiplication of signs:
![(+)(+)=+\\(-)(-)=+\\(-)(+)=-](https://tex.z-dn.net/?f=%28%2B%29%28%2B%29%3D%2B%5C%5C%28-%29%28-%29%3D%2B%5C%5C%28-%29%28%2B%29%3D-)
Then, given the following Rational expression:
![\frac{2x^2+5x+9}{x^2+2x-1}](https://tex.z-dn.net/?f=%5Cfrac%7B2x%5E2%2B5x%2B9%7D%7Bx%5E2%2B2x-1%7D)
You need to follow these steps in order to find its value when
:
1. Substitute the given value of "x" (
) into the expression:
![\frac{2(-2)^2+5(-2)+9}{(-2)^2+2(-2)-1}](https://tex.z-dn.net/?f=%5Cfrac%7B2%28-2%29%5E2%2B5%28-2%29%2B9%7D%7B%28-2%29%5E2%2B2%28-2%29-1%7D)
2. Evaluate and simplify:
![\frac{2(4)+5(-2)+9}{4+2(-2)-1}=\frac{8-10+9}{4-4-1}=\frac{7}{-1}=-7](https://tex.z-dn.net/?f=%5Cfrac%7B2%284%29%2B5%28-2%29%2B9%7D%7B4%2B2%28-2%29-1%7D%3D%5Cfrac%7B8-10%2B9%7D%7B4-4-1%7D%3D%5Cfrac%7B7%7D%7B-1%7D%3D-7)
Answer:
the answer is d
Step-by-step explanation:
Here is your answer. Good luck!
For a you would just have to add all the velocity up and divide by 5. For b its -15 the ball is going down.
Answer:
I think The answer to your question is 10
Step-by-step explanation: