Evaluate the expression.
1/2
A. 
B. 
C. 
D. 
Answer: C
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Calculate the flux of F across G.F(x, y, z) = 3xi + 3yj + 3zk; G is the surface of the sphere x2 + y2 + z2 = 4 in the first octant
A. 8? B. 12? C. 0 D. 24?
Solve the problem.Assume that the mathematical model C(x) = 19x + 170 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured if the cost is to be kept between $739,000 and $1,100,000?
A. {x 
570 < x < 760}
B. {x 
600 < x < 800}
C. {x 
380 < x < 570}
D. {x 
400 < x < 600}
Indicate whether the statement is true always, sometimes, or never.The product of a pair of complex conjugates is a real number.
A. Sometimes B. Always C. Never
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