Write an equivalent expression with negative exponents.
A. 
B. 
C. 3-5
D. (-3)-5
Answer: D
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Solve the equation.7x - 1 - 9x - 3 = 5x - 7x - 7
A. 0 B. -288 C. all real numbers D. no solution
Use the table to determine the probability. Round your answer to three decimal places if necessary.Students in a political science course were asked to describe their politics as "Liberal", "Moderate", or "Conservative." The results are displayed in the following table.
What is the probability that a student selected is a male, given that the student is considered a Moderate?
A. 0.447 B. 0.438 C. 0.533 D. 0.467
Find all points (x, y) where 
has a possible relative maximum or minimum. Use the second-derivative test to determine, if possible, the nature of f(x, y) at each of these points.
A. (-2, 1) is a relative minimum B. (-2, 1) is a relative maximum C. (2, -1) is a relative minimum D. (2, -1) is a relative maximum
The solution of the system 
is
Select the correct answer.
?
A. 
B. 
C. 
D. 
E. none of the above