Which of the following expressions is equivalent to 
? (x ? ?n, y ? ?n, where n is a whole number)
?
A. 
B. 
C. 
D. 
E. 
Answer: C
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Using the graph of the ellipse, determine the coordinates of the foci, vertices, and center.
A. Foci (± 
, 0), vertices (± 3, 0), center (0, 0)
B. Foci (± 
, 0), vertices (± 4, 0), center (0, 0)
C. Foci (± 3, 0), vertices (± 4, 0), center (
, 0)
D. Foci (± 4, 0), vertices (± 
, 0), center (0, 0)
Provide an appropriate response.The function f(x) = 200 
describes the future value of a certain annuity. What is the annual interest rate?
Fill in the blank(s) with the appropriate word(s).
Shade the region of feasible solutions for the given restraints.2x + 3y ? 6 x - y ? 3 x ? 1
A. 
B. 
C. 
D. 
Write the decimal in words.7.69
A. Seven and sixty-nine millionths B. Seven and sixty-nine thousandths C. Seven and sixty-nine hundredths D. Seven and sixty-nine tenths