Solve the problem. Write all linear equations in slope-intercept form.Suppose that a sales person observes that if an item is priced at $10 per item then 4 items are sold. If 2 items are sold for $12 per item then find a linear equation to model the number y of items sold for x dollars per item. Find the slope-intercept form of the equation of the line.
A. y = -x + 14
B. y = -x - 6
C. y = x - 6
D. y = x + 14
Answer: A
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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
Solve the equation.5(2z - 4) = 9(z + 5)
A. {25} B. {30} C. {-25} D. {65}
Use synthetic division to determine whether the number k is an upper or lower bound (as specified) for the real zeros of the function f.k = -2; f(x) = 4x3 - 3x2 + 4x + 1; Lower bound?
A. No B. Yes
Graph the linear inequality.x - y > -6
A. 
B. 
C. 
D. 