Find the median of the following data set.
?
Data Values
Frequency
2
5
5
4
6
2
?
A. 2
B. ?5
C. ?6
D. 3.5
E. ?None of the above.
Answer: B
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Solve.An earthquake was recorded with an intensity which was 
times as powerful as a reference level earthquake, or 
What is the magnitude of this earthquake on the Richter scale? The magnitude of an earthquake of intensity I is defined as 
, where Io is a minimum level for comparison.
A. 3.9 B. 0.49 C. 4.9 D. 11.3
Solve the problem.Find the perimeter of the triangle in the figure.
10 
km
A. 23 
km
B. 23 
km
C. 23 
km
D. 16 
km
Write the percent as a fraction or mixed number in simplest form.175%
A. 17
B. 
C. 1
D. 3
Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.A semicircular driveway has a diameter of 120 ft. How long is the driveway?
A. 376.8 ft B. 2400 ft C. 186.4 ft D. 188.4 ft