Solve the problem.The following table shows the number of dog collars, in thousands, produced by Allied Pet Products in the 3 years considered. 
Fit a quadratic function f(x) = ax2 + bx + c to the data. What is the value of c?
A. 12.8
B. 14
C. 20
D. 23.6
Answer: C
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Find the equation of the parabola corresponding to the given information.The parabola has focus ( 4 , 0 ) and directrix x = -4.
A. y = x2
B. x = y2
C. x = 
y2
D. x = - 
y2
Simplify by first converting to rational exponents. Assume that all variables represent positive real numbers.
? 
A. 
B. 
C. 
D. 
Find the requested area or volume.Area of a trapezoid: Height = 2
in., B = 
in., and b = 
in. (where B is the length of the longer of the parallel sides, and b is the length of the shorter of the parallel 
A. 
in.2
B. 3
in.2
C. 6
in.2
D. 
in.2
Solve the problem.Using the numerals 0 through 9, how many 5-digit serial numbers can be made if the first digit must be 0 or 1 and numerals may be repeated?
A. 20,000 B. 100,000 C. 80 D. 13,122