8\9 is the correct answer becuase 5 plus 3 is 8 so 8\9
The first thing that shoyuld be noted is that you have linear functions here : straight lines in your graph
B is right I think because it changes the point from b to a instead of a to b
Answer:
1. 1/18
2. 49/144
3. 5/24
4. 1/4
Step-by-step explanation:
FULL DISCLAIMER these may or may not be correct i have only worked with stats and probability a few times
The area formula for a rectangle is A = L*W. We have the area as 3197, now we just have to find a way to directly relate the length to the width with only one unknown, since we can't have 2 unknowns. The problem tells us that the length is 22 in. less than 7xW. That will be expressed as L=7W-22, and width is just W. Filling in we have 3197=W(7W-22). Distributing through the parenthesis we have
. Since we have to solve for x and the only way we can do that is by factoring, we will move the 3197 over to the other side by subtraction and then factor the quadratic.
. I recommend putting that into the quadratic formula, and when you do you get W values of 23 and -19.857 The only 2 things in math that will never EVER be negative are time and distance/length. And since one of our lengths there is negative we know that that is not the one we will use. Therefore, the width is 23. The length then is L=7(23)-22 which is 139