Graph.y = 2x + 2(-x) 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine whether the function is a probability density function over the given interval.f(x) = 
A. No B. Yes
Mathematics
Solve the rational inequality and graph the solution set on a real number line. 
< 1
A. (-?, 2)
B. (-?, 2) ? (9, ?)
C. (-?, 2] ? [9, ?)
D. (2, 9)
Mathematics
Translate the English sentence into a mathematical sentence and solve, if necessary. Use x as the variable.The score on a test was between 77 and 64.
A. x < 77 B. x > 64 C. 77 < x < 64 D. 64 < x < 77
Mathematics
Provide an appropriate response.Write the steps you would use to solve this equation: 9(x - 1) + 2x = -2x.
What will be an ideal response?
Mathematics