Find the eccentricity of the conic section shown in the graph.
A. e = 
B. e = 1
C. e = 
D. e = 
Answer: D
Mathematics
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Add.(4x2 - xy - y2) + (x2 + 9xy + 7y2)
A. 3x2 - 10xy - 8y2 B. 5x2 + 8xy + 6y2 C. 4x2 + 9xy + 7y2 D. 5x2 + 10xy + 8y2
Mathematics
Determine whether the function is one-to-one.f(x) = x3 - 1
A. No B. Yes
Mathematics
Find the indicated sum. Use the formula for the sum of the first n terms of a geometric sequence.
A. 
B. 
C. 
D. 
Mathematics
A new car dealership has taken an inventory of the vehicles it has in stock. Below is a histogram indicating the number of vehicles in stock in certain price ranges. Use the histogram to answer the question.
How many vehicles does the dealership have in stock that are priced between $14,000 and $27,999?
A. 9 vehicles B. 50 vehicles C. 15 vehicles D. 45 vehicles
Mathematics