Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. ?
B. 
C. 1
D. No limit
Answer: B
Mathematics
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Solve the problem.If one earthquake is 398,107 times as intense as another, what is the difference in the Richter scale readings of the two earthquakes?
A. 4.6 B. 5.6 C. 0.56 D. 12.9
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Solve for the specified letter.V = 
Bh, for B
A. B = 
B. B = 
C. B = 
D. B = 
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Graph the numbers on a number line.1, 3, 5, 7
A. 
B. 
C. 
D. 
Mathematics
Round the decimal to the given place value.2.109, nearest hundredth
A. 2.11 B. 2.109 C. 2.1 D. 2.12
Mathematics