Solve the equation.2(5 + 3x) = 
A. 
B. 3
C. 8
D. -3
Answer: D
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Determine if the given polar coordinates represent the same point.(r, ?), (-r, ? + ?)
A. Yes B. No
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2 for r = 6, ? = 3.14
A. A = 9.14 B. A = 18.84 C. A = 59.16 D. A = 113.04
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 expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00