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.Two earthquakes differ by 0.1 when measured on the Richter scale. How would the seismographic readings differ at a distance of 100 kilometers from the epicenter?
What will be an ideal response?
The earthquake of greater magnitude has a seismographic reading that is 
times that of the lesser earthquake.
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Find the slope of the line passing through the two given points.(-2, -7) and (7, -7)
A. -5 B. 1 C. 0 D. 5
Find an equation of the line through the point (8, 16) that cuts off the least area from the first quadrant.
What will be an ideal response?
Solve the problem.A gardener has 28 clients, 50% of whom are businesses. Find the number of business clients.
A. 14 clients B. 1400 clients C. 140 clients D. 14,000 clients
Solve the problem.A rock climber descends to the floor of a canyon in 9 stages, dropping 400 feet each time. Write the total depth of the canyon as a product of integers and find the depth of the canyon.
A. 9 ? (400) = 2600; 2600 feet deep B. 9 ? (400) = 360; 360 feet deep C. 9 ? (-400) = -2700; 2700 feet deep D. 9 ? (-400) = -3600; 3600 feet deep