Choose the inequality that matches the graph.
A. y ? -x2 - 6x - 2
B. y > -x2 - 6x - 2
C. y ? -x2 - 6x - 2
D. y < -x2 - 6x - 2
Answer: D
Mathematics
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Determine the optimal strategies for R and for C for the game whose payoff matrix is given.
A. 
; 
B. 
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A man started to work in 1977 at an annual salary of $14,400. He received a $800 raise each year. How much was his annual salary in 1997?
A. $30,200 B. $30,700 C. $30,400 D. $15,200 E. $30,300
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Find all cube roots of the complex number. Leave answers in trigonometric form.-3
+ 3i
A. 
cis 50°, 
cis 170°, 
cis 290°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 50°, 
cis 170°, 
cis 270°
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Determine whether the given lines are parallel, perpendicular, or neither.y = 7y = -2
A. Perpendicular B. Parallel C. Neither
Mathematics