Answer:
A and D
Step-by-step explanation:
Parallel lines have same slope.
This formula solve by discriminant (D=b^2-4ac)
Try the 3rd one.
when you factor out the -5
Answer:
n = r - 2.5
Step-by-step explanation:
We have the following data:
7 4.5
8 5.5
10 7.5
12 9.5
Now, what we will do is what happens if we subtract each one:
7 - 4.5 = 2.5
8 - 5.5 = 2.5
10 - 7.5 = 2.5
12 - 9.5 = 2.5
The difference is always kept constant, therefore the equation would be:
n = r - 2.5
The answer is 231/50
Hope this helps
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