Indicate whether the graph of the equation is a parabola, circle, ellipse, or hyperbola.x + 18 - 12y = -3y2
A. ellipse
B. parabola
C. circle
D. hyperbola
Answer: B
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Evaluate or simplify the given expression.cos-1 
A. 
B. - 
C. 
D. 
Find all the first order partial derivatives for the following function.f(x, y, z) = 
A. 
= - 
; 
= 
; 
= - 
B. 
= - 
; 
= - 
; 
= 
C. 
= 
; 
= 
; 
= 
D. 
= 
; 
= - 
; 
= 
Find the slope of the line passing through the pair of points.
?
?
A. m = -1 B. m = 2 C. m = 1 D. m = 20 E. none of these
Use Bayes' rule to find the indicated probability.Quality Motors has three plants. Plant 1 produces 35% of the car output, plant 2 produces 20% and plant 3 produces the remaining 45%. One percent of the output of plant 1 is defective, 1.8% of the output of plant 2 is defective and 2% of the output of plant 3 is defective. The annual total production of Quality Motors is 1,000,000 cars. A car chosen at random from the annual output and is found defection. What is the probability that it came from plant 2?
A. 0.35 B. 0.559 C. 0.224 D. 0.217