Write the equation of the axis of symmetry.f(x) = x2 - 12x + 44
A. x = -6
B. x = 0
C. x = 8
D. x = 6
Answer: D
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Find the indicated probability or percentage for the normally distributed variable.The mean weekly income of teachers in one state is $390 with a standard deviation of 
The incomes are approximately normally distributed. What is the probability that a randomly selected teacher earns more than $425 a week?
A. 0.099 B. 0.215 C. 0.218 D. 0.782
Find the rectangular coordinates for the point for which the polar coordinates are given.(3.3, 4.1)
A. (-1.90, 2.70) B. (-2.70, -1.90) C. (-1.90, -2.70) D. (2.70, -1.90)
Solve Ax + By = C for x.
a. x = b. x = c. x = d. x =
Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.75 as soon as you get in the taxi, to which a charge of $2.40 per mile is added. Find an equation that can be used to determine the cost, C, of an x-mile taxi ride.
A. C = 2.40 + 2.75x B. C = 2.75 + 2.40x C. C = 3.65x D. C = 5.15x