Solve the problem.A rectangular board is 6 by 16 units. How far from the short sides of the board will the foci be located to determine the largest elliptical tabletop?
A. 3.0
B. 7.4
C. 5.0
D. 0.6
Answer: D
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Find the area of the shaded region.y = 2x2 + x - 6y = x2 - 4
A. 
B. 
C. 
D. 
Solve the problem.How many different 11-letter words can be formed from the letters of the word MISSISSIPPI? Leave your answer in factorial form.
A. 
B. 
C. 
D. 
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.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?
A. The earthquake of greater magnitude has a seismographic reading that is 
times that of the lesser earthquake.
B. The earthquake of greater magnitude has a seismographic reading that is 100 times that of the lesser earthquake.
C. The earthquake of greater magnitude has a seismographic reading that is 10 times that of the lesser earthquake.
D. The earthquake of greater magnitude has a seismographic reading that is 
times that of the lesser earthquake.
Using the restrictions stated for the function, find a rule for f-1.f(x) = x2 - 20, x ? 0
A. f-1(x) = - 
B. f-1(x) = x2 + 20
C. f-1(x) = 
D. f-1(x) = - 