Find the mean of the list of data.18, 20, 22, 22, 20, 18
A. 21
B. 19
C. 22
D. 23
E. 20
Answer: E
Mathematics
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Provide an appropriate response. Graph sin x, sin 2x, and sin 0.5x on the same graph. Compare the graphs. How are they alike and how are they different? Use a graphing calculator.
What will be an ideal response?
Mathematics
Write each inequality in interval notation and graph the interval on a number line.x > 5
A. [5, ?)
B. (-?, 5)
C. (5, ?)
D. (-?, 5]
Mathematics
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(7 + 4i)(9 + 6i)
A. 87 - 6i B. 24i2 + 78i + 63 C. 39 + 78i D. 39 - 78i
Mathematics
Solve.An airplane travels 400 miles against the wind in 4 hours, and makes the return trip with the same wind in 2 hours. Find the speed of the wind.
A. 200 mph B. 100 mph C. 50 mph D. 150 mph
Mathematics