Subtract and simplify. Write the answer as a mixed number as needed.15
- 9
A. 24
B. 5
C. 23
D. 5
Answer: B
Mathematics
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Simplify.
A. 52 B. 10 C. 28 D. 16
Mathematics
Perform the indicated operations and simplify. Assume all variables represent positive real numbers.-9
+ 7
+ 2
A. -186
B. 20
C. -9
D. 186
Mathematics
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where xo = 10-3.Find the magnitude (to one decimal place) of an earthquake whose seismographic reading is 2000 millimeters at a distance of 100 kilometers from its epicenter.
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Mathematics
If the terminal point determined by t is  figure 1.png)
, find sin t, cos t and tan t.
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Mathematics