Solve the inequality.x2 - 4x - 5 ? 0

A. [5, ?)
B. (-?, -1]
C. (-?, -1] or [5, ?)
D. [-1, 5]


Answer: D

Mathematics

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src="https://sciemce.com/media/4/ppg__tttt0610191239__f1q35g5.jpg" style="vertical-align: -17.0px;" /> to find how much the power is changing at the instant when R = 4 ohms, V = 3 volts,  and 

A. -2.19 watts
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Mathematics