Tell whether the given equation describes a parabola, an ellipse, or a hyperbola.r = 
A. Parabola
B. Ellipse
C. Hyperbola
Answer: B
Mathematics
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Find the acute angle, in radians, between the lines.5x - 2y = -10 and 4x + 5y = 4
A. 0.2900 radians B. 2.847 radians C. 1.277 radians D. 0.2942 radians
Mathematics
Solve the problem.The cost of manufacturing clocks is given by c = 121
, where c is the total cost and n is the number produced. What is c when no clocks are produced?
A. $121 B. $484 C. $1936 D. $44
Mathematics
Evaluate the function.Q(x) = -5x2 + 5x - 9; Q
A. 
B. - 
C. - 
D. 
Mathematics
Factor completely.2mn3 - 6mn + 8mn2 - 24m
A. 2(mn2 - 3)(n + 4m) B. 2m(n2 - 3)(n + 4) C. 2(n2 + 3)(mn - 4) D. 2m(n2 + 4)(n - 3)
Mathematics