Solve the equation.a - 3 = 9
A. {-6}
B. {6}
C. {12}
D. {-12}
Answer: C
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Graph the polar equation.r = 1 + cos ?
A. 
B. 
C. 
D. 
Solve using the multiplication principle.9b = -153
A. 162 B. -162 C. 1 D. -17
Solve the problem.The sum of a number and its square is 30. Find the number.
A. -5 or -6 B. 5 or 6 C. -5 or 6 D. 5 or -6
Use a graphing calculator to plot the data and find the quadratic function of best fit.The number of housing starts in one beachside community has increased over the last eight years. The following data shows the number of housing starts over this period of time. Use a graphing calculator to plot a scatter diagram. What is the quadratic function of best fit? Round values to the nearest thousandth.
A. H(x) = 3.268x2 + 30.494x + 168.982 B. H(x) = -3.268x2 + 30.494x - 168.982 C. H(x) = -3.268x2 + 30.494x + 168.982 D. H(x) = -3.268x2 - 30.494x + 168.982