Solve the inequality.x2 + 9x ? 0
A. [-9, 0]
B. [0, 9]
C. (-?, 0] or [9, ?)
D. (-?, -9] or [0, ?)
Answer: A
Mathematics
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Graph the inequality on a number line. Then write the solution using interval notation.-4.5 ? x
A. (-4.5, ?)
B. (-?, -4.5]
C. [-4.5, ?)
D. (?, -4.5)
Mathematics
Find the intervals on which the function is continuous.y = 
A. discontinuous only when x = 15 B. continuous everywhere C. discontinuous only when x = -24 D. discontinuous only when x = -3
Mathematics
Select an appropriate type of modeling function for the data shown in the graph. Choose from exponential, logarithmic, and logistic.
A. Logistic B. Logarithmic C. Exponential
Mathematics
Write the improper fraction as a mixed or whole number.
A. 5
B. 5
C. 6
D. 4
Mathematics