Identify the conic section represented by the equation.6x2 + 5y2 - 12x + 30y - 39 = 0
A. parabola
B. circle
C. hyperbola
D. ellipse.
Answer: D
Mathematics
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Solve the problem.Sue has taken four exams so far in her History course. His scores are 98.9, 78.2, 93, and 87.5. What is the average of these scores?
A. 89.4 B. 91.6 C. 89.55 D. 88
Mathematics
Simplify the expression. If any variables exist, assume that they are positive.6
+ 9
A. 15
B. 54
C. 15
D. 165
Mathematics
Use the vertical line test to determine whether or not the graph is a graph in which y is a function of x.
A. function B. not a function
Mathematics
Perform the indicated operations and write the result in standard form.(
+ 
)(
- 
)
A. 7 + 6i
B. 7 - 6i
C. 7 - 3i
D. -17 - 3i
Mathematics