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Quiz 3
Question 1
How long does it take for a sum of money to double if compounded continuously at 14 %?
a)
approximately
years
b)
approximately
years
c)
approximately
years
d)
approximately
years
e)
approximately
years
Question 2
According to the Bureau of the Census, the population of the United States in 1990 was approximately
249 million and in 2000, 281 million. Use this information to estimate the population in 1965.
a)
million
b)
million
c)
million
d)
million
e)
million
Question 3
A 300liter tank initially full of water develops a leak at the bottom. Given that 20% of the water leaks out
in the first 5 minutes, find the amount of water left in the tank 10 minutes after the leak develops if the
water drains off at a rate that is proportional to the amount of water present.
a)
liters
Print Test
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11/24/2009 2:11 PM
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liters
c)
liters
d)
liters
e)
liters
Question 4
Two years ago there were 9 grams of a radioactive substance. Now there are 8 grams. How much will
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This note was uploaded on 03/06/2011 for the course MATH 1432 taught by Professor Morgan during the Spring '08 term at University of Houston.
 Spring '08
 morgan
 Math

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