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 0.94 millimeters at a distance of 100 kilometers from its epicenter?
Fill in the blank(s) with the appropriate word(s).
2.9731
Mathematics
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Solve. Express the result in scientific notation. Round to the nearest hundredth, if necessary.During a science experiment you find that the correct answer is 5.68 × 106. If you mistakenly write the answer as 4.68 × 106, by how much is your answer off?
A. 100,000,000 B. 5,680,000 C. 1,000,000 D. 100,000
Mathematics
Find the exact value of the expression.sin 185° cos 65° - cos 185° sin 65°
A. 
B. - 
C. - 
D. 
Mathematics
Solve the problem.Two out of every ten drivers missed at least three questions on their driving test. What percent missed less than three?
A. 8% B. 20% C. 2% D. 80%
Mathematics
Factor, if possible.b6 - 8
A. (b2 - 2)(b4 + 2b2 + 4) B. (b2 - 2)(b4 - 2b2 + 4) C. (b2 + 2)(b4 - 2b2 + 4) D. cannot be factored
Mathematics