The distance (in miles) that a person can see to the horizon can be approximated by
, where n is the elevation (in feet above sea level) of the person. Approximate the elevation of a person who can see 101 miles to the horizon. Round your answer to the nearest foot.
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Question 3
3.
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Question 4
4.
Simplify the expression and write in radical form
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Question 5
5.
Solve for x.
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Question 6
6.
Solve for x (hint: change to log form)
Round to the nearest hundredths.
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Question 7
7.
Henry deposits $750 into a college savings account that is compounded annually. If Henry lets the money sit in the account without adding or removing any and receives an 8.5% interest rate, how much money will he have total after 5 years?
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Question 8
8.
Solve for x.
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Question 9
9.
Kennedy won $3000 from a radio contest. If she puts the money in a bank account that earns 2.9% interest compounded quarterly (4 times per year), how much interest will she earn in 10 years?
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Question 10
10.
The table shows the lengths of time, in minutes, between aftershocks following an earthquake. What is the interquartile range of the data?
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Question 11
11.
In a normal distribution, what percent of the data lies within three standard deviations of the mean?
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Question 12
12.
Which value is the range of the entire box plot?
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Question 13
13.
Which value is the mean of the box plot?
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Question 14
14.
When Mrs. Myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. This means that 95% of her students scored between which two scores?
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Question 15
15.
The masses of six children are 34.5 kilograms, 42.6 kilograms, 39.8 kilograms, 40.1 kilograms, 53.4 kilograms, and 33.8 kilograms. Find the mean mass.
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Question 16
16.
Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample median of Ervin's scores?
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Question 17
17.
The graph of normally distributed set of data resembles a ____________________.
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Question 18
18.
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.Out of a randomly selected 1200 people from the population, about how many of them would have an IQ between 70 and 130?