Use a 3D grapher to graph
Sketch the graph.
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In the series circuit below, XL = 5.9 Kê and R = 10 Kê. Find the angle that the voltage leads the current.
a. -30.5ø
b. 59.5ø
c. -59.5ø
d. 30.5ø
e. 49.5ø
Identify the equation as either an identity or not.
= tan t
A. Not an identity B. Identity
Find the range of the data set.
Use the following information to answer question, 24 students in an engineering class were asked to record the number of hours spent in a lab during a week. The results are listed below. 3, 10, 21, 14, 8, 5, 1, 4, 13, 7, 9, 6, 11, 10, 6, 7, 12, 16, 1 , 7, 14, 1, 11, 8
Solve the problem.Suppose that a metal block is cooling so that its temperature T(in °C) is given by 
where t is in hours. How long has the cooling been taking place if the block now has a temperature of 200°C?
A. 16 hr B. 4 hr C. 8 hr D. 2 hr