The difference in the x-coordinations of two points is 3, and the difference in the y-coordinations of the two points is 6. What
2 answers:
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Answer:
.
Step-by-step explanation:
We have been given that 4 days I have 140 copies of a book, 9 days I only have 50 left. We are asked to write an equation , where c is number of copies still on hand and t days being available.
We have two points on line (4,140) and (9,50). Now, we will use these points to find slope as:
Now, we will use point-slope form of equation and substitute
and coordinates of point (9,50) as:
Therefore, our required equation would be .
Answer: 18.7
Step-by-step explanation:
Find the lengths of AB, BC, and CA
AB = = 5
≈ 7.1
BC = = 5
≈ 7.1
CA = = 2
≈ 4.5
7.1 + 7.1 + 4.5 = 18.7