Write the sum in summation notation.2 + 
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Answer: A
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Divide. Write with positive exponents.
A. 10x + 2
B. 5x - 10x5 + 
C. 5x + 2 + 
D. 5x + 2
Determine whether or not the equation is quadratic.x2 = (x - 2)2
A. Quadratic. B. Not quadratic.
Identify the given number as "Rational", "Irrational", or "Not a real number". If the number is rational, give its exact value. If the number is irrational, give a decimal approximation to the nearest thousandth.- 
A. Rational, -11.358 B. Irrational, -11.358 C. Irrational, 11.358 D. Not a real number
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