Write each inequality in interval notation and graph the interval on a number line.0 ? x ? 4
A. (0, 4]
B. [0, 4]
C. (0, 4)
D. [0, 4)
Answer: B
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
Find the area of the region enclosed by one loop of the curve. Select the correct answer.
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Mathematics
Solve the problem.The profit that the vendor makes per day by selling x pretzels is given by the function 
Find the number of pretzels that must be sold to maximize profit.
A. 1.6 pretzels B. 800 pretzels C. 290 pretzels D. 400 pretzels
Mathematics
Solve.
0.24(x – 0.25) – 0.8x = 0.2x + 2.79
Mathematics