The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 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?Round the answer to four decimal places.
A. 0.20281
B. 0.38808
C. 2.0281
D. 3.8808
Answer: D
Mathematics
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Find the derivative.y = 2x2 + 7x + 4ex
A. 4x + 7 + ex B. 2x + 4ex C. 4x + 7 + 4ex D. 4x + 4ex
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Provide the proper response.Fill in the blanks so that the following is an arithmetic progression. 1.7, 2.5, 3.3, 
, 
, 
What will be an ideal response?
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In a balance scale diagram, which object represents the arithmetic mean?
a. Fulcrum b. Balance board c. Color of font d. Weights on scale
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Write the expression as a sum, difference, or multiple of logarithms.log3
A. 5 log3x + 2 log3y - log3z - 
log3w
B. 10 log3xy - 
log3wz
C. 7 log3xy - 
log3wz
D. log3x5 + log3y2 - log3z - log3w4/5
Mathematics