Find the center and the radius of the circle.x2 + y2 - 4x - 8y + 11 = 0
A. (-2, -4); r = 3
B. (2, -4); r = 3
C. (2, 4); r = 3
D. (-2, 4); r = 3
Answer: C
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Graph the equation.y = 5x2 - 1
A. 
B. 
C. 
D. 
A certain type of battery cost $1.50, and another battery cost $4.00. A recent shipment contained 2200 batteries, and the bill totaled $5050. How many of the more expensive batteries were in the shipment?
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Classify the statement as true or false.If a number is divisible by 8, then it is also divisible by 16.
A. True B. False
Determine the discriminant of the quadratic equation. Use the value of the discriminant to determine whether the quadratic equation has two rational solutions, two irrational solutions, one repeated real solution, or two complex solutions that are not real.1 + 2x2 = -2x
A. Two rational solutions B. One repeated real solution C. Two complex solutions that are not real D. Two irrational solutions