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timurjin [86]
2 years ago
5

Need this by midnight please show your work :)

Mathematics
1 answer:
Marina CMI [18]2 years ago
4 0

Answer:

  • See below

Step-by-step explanation:

<h3>Part 1</h3>
  • P = $800
  • r = 2% (since P > $500)
  • I = $100
  • t = ?

<u>Find t:</u>

  • I = Prt
  • 100 = 800*0.02t
  • 0.16t = 1
  • t = 1/0.16
  • t = 6.25 years
<h3>Part 2</h3>
  • P = $100
  • r = 1.5% (since P < $500)
  • I = $50
  • t = ?

<u>Find t:</u>

  • I = Prt
  • 50 = 100*0.015t
  • 0.03t = 1
  • t = 1/0.03
  • t = 33.33 years
<h3>Part 3</h3>
  • P = $10000
  • r = 3% (since P > $5000)
  • I = $750
  • t = ?

<u>Find t:</u>

  • I = Prt
  • 750 = 10000*0.03t
  • 300t = 750
  • t = 750/300
  • t = 2.5 years
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The vertex is the low point of the graph. The graph is horizontally symmetrical about this point. On this graph, the vertex is (3, -1).

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<em>Additional comment</em>

The reminder that these are "points" is to ensure that you write both coordinates as an ordered pair. We know the x-intercepts have a y-value of zero, for example, so there is a tendency to identify them simply as x=2 and x=4. This problem statement is telling you to write them as ordered pairs.

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