Calculate how many times more intense an earthquake with a Richter number of 8.1 is than an earthquake with a Richter number of 6.2. Please round the answer to the whole number.
A. 84
B. 87
C. 79
D. 89
E. 81
Answer: C
Mathematics
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Solve the problem by integration.Find the first-quadrant area bounded by 
and 
A. 
ln 
B. 6 ln 
C. 
ln 
D. 
ln 
Mathematics
Calculate.-3.15 ? (-8.3)
A. 11.45 B. 26.145 C. -11.45 D. -5.15
Mathematics
Provide an appropriate response. Determine which ordered pair is NOT a solution for the equation:2x = 5y - 4
A. 
B. 
C. 
D. (-2, 0)
Mathematics
Solve the equation.|4x - 5| = |x + 2|
A. ?
B. {- 
, - 1}
C. {
, - 4}
D. {
, 
}
Mathematics