A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time. Round to the nearest hundredth, if necessary.Less than 460 hours
A. 48.40%
B. 51.60%
C. 34.46%
D. 65.54%
Answer: C
Mathematics
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A. {(-5, -1)} B. {(-1, -5)} C. {(-4, -1)} D. {(-5, 1)}
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A. Yes B. No
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Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 
B. 
C. 21
D. 
Mathematics