Identify the equation without applying a rotation of axes.10x2 + 9xy + 4y2 + 2x - 3y + 5 = 0
A. ellipse
B. parabola
C. hyperbola
D. not a conic
Answer: A
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Solve the problem.In how many ways can 8 people be chosen and arranged in a straight line, if there are 12 people from whom to choose?
A. 11,880 B. 23,760 C. 19,958,400 D. 96
Find the x- and y-intercepts of f.f(x) = (x + 1)(x - 5)(x - 1)2
A. x-intercepts: -1, 1, -5; y-intercept: 5 B. x-intercepts: -1, 1, 5; y-intercept: 5 C. x-intercepts: -1, 1, 5; y-intercept: -5 D. x-intercepts: -1, 1, -5; y-intercept: -5
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 48
C. 
D. 1
Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.The manager of a coffee shop has one type of coffee that sells for $6 per pound and another type that sells for $15 per pound. The manager wishes to mix 80 pounds of the $15 coffee to get a mixture that will sell for $7 per pound. How many pounds of the $6 coffee should be used?
A. 320 pounds B. 640 pounds C. 360 pounds D. 720 pounds