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Rasek [7]
3 years ago
10

A circle with a circumference of 6 has an arc with a 20 degree central angle.

Mathematics
1 answer:
blagie [28]3 years ago
7 0

Answer:

1/3

Step-by-step explanation:

If the central angle is 20 degrees, that means that the arc of this circle takes up 1/18 of the circle's circumference. Because there are 360 degrees in a circle, we get 1/18 by dividing the part (20 degrees) over the whole (360 degrees)

Now that we know that, we do the same for the circumference measure by taking 1/18 of 6, which is 1/3

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Use compound interest formula  F=P(1+i)^n twice, one for each deposit and sum the two results.

For the P=$40,000 deposit,
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Future value (at end of year 6),
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For the P=20000, deposited at the START of the fourth year, which is the same as the end of the third year.
i=5% (semi-annual
n=2*(6-3), n = 6 
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Total amount after 6 years
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