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Finger [1]
3 years ago
13

When the town of Manning first started its voluntary recycling program, 2500 of the town's residence participated. The town pred

icts that the number of people participating in the recycling program will increase by 5% each year.
Which explicit rule can be used to determine the number of people participating in the program in the fifth year?

A. an=2500(0.05)^n

B. an=2500(1.05)^n-1

C. an=2500(0.05)^n-1

D. an=2500(1.05)^n
Mathematics
1 answer:
Paraphin [41]3 years ago
3 0
Answer: The correct answer is Choice D.

This is an example of an exponential equation. They are in the form of y=ab^x, where a is the starting value, b is the rate and x is the number of years.

Our data starts at 2500 and increases by 5%, or 100% + 5% = 1.05.

If you put them together, you have the equation y = 2500(1.05)^x, Choice D.
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6. If you draw 35 lines on a piece of paper so that no two lines are parallel to each
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The point of intersection is the point where lines intersect.

<em>There will be 595 intersections for 35 lines, where no 3 lines are concurrent.</em>

<em />

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<em />d = 3<em> --- no three lines are concurrent</em>

<em />

When no three line are concurrent, it means that no three lines meet at the same point.

<u>So, the sequence of intersection is:</u>

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Following the above sequence, the number of intersections for n lines is:

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In this case, n = 35.

So, we have:

n_k = \frac{35 \times (35 - 1)}{2}

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Read more about lines of intersections at:

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