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jeka94
3 years ago
7

Is the table proportional?

Mathematics
1 answer:
inysia [295]3 years ago
5 0
No. In order to be proportional, y must change directly with x.

Looking at the first two pieces of data, let's find the ratio between x and y.

2/5 and 3/6. These should be equivalent of the table is proportional.





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Tim installs 50 square feet of his floor in 45 minutes. At this rate how long does it take him to install 495 square feet.
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495/50 is 9.9. So we know we multiplied 50 by 9.9 to change it to 495.
Do the same on the other side. 45 x 9.9 = 445.5.

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Find the vertex, focus, directrix, and focal width of the parabola. (5 points)
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vertex is at (0,0)

the focus point is "p" or 5 units down from there, namely at (0, -5)

the directrix is "p" units on the opposite direction, up, namely at y = 5

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Answer:

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