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.What is the magnitude of an earthquake whose seismographic reading is 7.6 millimeters at a distance of 100 kilometers from its epicenter?
A. 3.8808
B. 0.20281
C. 0.38808
D. 2.0281
Answer: A
Mathematics
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Determine whether A = B, A ? B, B ? A, A ? B, B ? A, or if none of these applies.A = {6, 7, 8}B = {x 
}
A. A ? B, B ? A, and A = B B. None of these C. A = B D. A ? B, B ? A, and A = B
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The density ? of an object with a mass of 13 grams varies inversely with the volume V in milliliters, 
Find 
A. 0
B. ?
C. -?
D. 
Mathematics
Write the number in standard form.92 ? 103
A. 540 B. 81,000 C. 1081 D. 5.31441e+11
Mathematics