Solve the problem.The energy E (measured in joules) released by an earthquake of magnitude M on the Richter scale 
is given by the equation 
. Suppose an earthquake registers 5.8 on the Richter scale. Let I0 = 1. How many joules of energy were released?
A. E = 105.8 joules
B. E = 13.110 joules
C. E = 1013.1 joules
D. E = 5.810 joules
Answer: C
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Evaluate the polynomial.-xyz for x = 1, y = -1, and z = 2
A. 1 B. 16 C. -2 D. 2
Solve the problem.The table shows the population of a certain city in various years. The data can be modeled by an exponential function of the form 
Use exponential regression to predict the population of the city in the year 2000. (You will first need to determine the exponential function f that models this data). 
A. About 338,291 B. About 250,475 C. About 307,101 D. About 273,097
Solve the problem.On a quiz, a student factored 2y3 + 14y2 + 24y by first factoring out 2y to get 
He then wrote the answer 
as the factored answer. Why is this answer wrong?
What will be an ideal response?
Evaluate the rational function.r(x) = 
, r(7)
A. Undefined
B. - 
C. 0
D. 