Graph the hyperbola.
- 
= 1
A. 
B. 
C. 
D. 
Answer: C
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A cross-section of a parabolic reflector is shown in the figure. The bulb is located at the focus and the opening at the focus is 18 cm. Find an equation of the parabola. Let V be the origin. Find the diameter of the opening |CD|, 19 cm from the vertex.
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Solve the problem.A television manufacturing company has two different factories. The profit function for Factory I when x televisions are manufactured and sold is as follows: P(x) = -0.07x2 + 25x - 250The profit function for Factory II when x televisions are manufactured and sold is as follows: P(x) = -0.075x2 + 35x - 1500For what number of televisions is the profit the same at both factories, and what is the profit?
A. 0 televisions; $0 B. 125 televisions; $1781.25 C. 233 televisions; $2583.33 D. 134 televisions; $1843
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
Find the greatest common factor of the terms.14y, 21
A. 7y B. 7 C. 14 D. 42y