Mathematics, 04.12.2020 23:10, stichgotrich849
The total land area of Russia is about 20,000,000 km^2, or 2 x 10^7 km^2.
The total land area of Puerto Rico is about 10,000 km^2, or 2 x 10^2 km^2.
About how many times larger is Russia than Puerto Rico?
A. 2 x 10^-3 times
B. 19,990,000 times
C. 200 times
D. 2 x 10^3 times
Answers: 1
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Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
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The total land area of Russia is about 20,000,000 km^2, or 2 x 10^7 km^2.
The total land area of Pu...
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