X=3
r<span>≥8
n=6
Plug the answers in until you get on that fits the best.</span>
Answer:
(-3, 0)
Step-by-step explanation:
Let's solve this system using the elimination by addition/subtraction method. Begin by writing the two equations one above the other:
5x +2y =-15
2x - 2y =-6
Notice that the y terms cancel each other out:
5x +2y =-15
2x - 2y =-6
------------------
7x = -21
Dividing both sides by 7 results in x = -3.
Subbing -3 for x in either of the given equations leads to finding y:
5(-3) + 2y = -15, or -15 + 2y = -15. This results in 2y = 0, or y = 0.
The solution is (-3, 0).
The factored version of the equation is (a-5) (a+4)
To the rest of the questions you should add an image to help visualize what you are asking us.
hope this helps !
Fun!
Line Up the decimals like a vertical addition problem.
Answer: 2.89100
