Determine whether the following rule defines y as a function of x.The x, y pairs: {(2, -9), (2, 5), (5, -8), (7, -3), (11, 9)}
A. Function
B. Not a function
Answer: B
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Find the area of the surface generated when the given curve is revolved about the y-axis.y = (3x)1/3, for 
? x ? 9
A. 
(823/2 - 23/2)
B. 
(823/2 - 23/2)
C. 
(823/2 - 1)
D. 
(823/2 - 23/2)
A new chocolate company is estimating how many candy bars per week college students will consume of their line of products. The graph shows the probable number of candy bars students (age 18-22) will consume from year 0 to year 10. B(x) gives the number of candy bars for boys, G(x) gives the number of candy bars for girls, and T(x) gives the total number for both groups. Use the graph to answer the question.
Estimate B(7) and G(7) and use your estimates to estimate T(7).
A. 2.3; 4.0; 6.3 B. 2.2; 4.3; 6.5 C. 3.5; 4.2; 7.7 D. 2.5; 4.0; 6.5
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
Perform the indicated operation. Write the result in standard form.5i + (-7 - i)
A. -7 + 6i B. 7 - 6i C. 7 - 4i D. -7 + 4i