Add.
+ 
A. - 
B. 
C. 
D. - 
Answer: C
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Add, first finding the LCD. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Solve the problem using your calculator.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). What is the correlation coefficient?
A. -0.071 B. 0.235 C. 0.246 D. 0.708
Decide whether the statement is true or false. If it is false, tell why.The equation (x + 26)2 = 0 has exactly one real solution.
A. True B. False; the equation has two real solutions. C. False; the equation has no real solutions.
Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is shifted 2 units to the left. This graph is then vertically stretched by a factor of 5 and reflected across the x-axis. Finally, the graph is shifted 7 units downward.
A. y = -5(x + 7)2 - 2 B. y = -5(x - 2)2 + 7 C. y = -5(x - 2)2 - 7 D. y = -5(x + 2)2 - 7