Different strains of a virus survive in the air for different time periods. For a strain that survives t minutes, let N=h(t) be the number of people infected (in thousands). The most common strain survives for t0 minutes. What does the statement h(t0+15) tell you about the number of people infected?       h(t0+15) is the number of strains whose open-air survival time is 15 minutes.   h(t0+15) is the number of people (in thousands) infected by a strain 15 minutes after the common strain.   h(t0+15) is the number of people (in thousands) infected by a strain whose open-air survival time is 15 minutes shorter than the most common strain.   h(t0+15) is the number of people (in thousands) infected by a strain whose open-air survival time is 15 minutes longer than the most common strain.   h(t0+15) is the number of strains whose open-air survival time is 15 minutes longer than the most common strain.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Different strains of a virus survive in the air for different time periods. For a strain that survives t minutes, let N=h(t) be the number of people infected (in thousands). The most common strain survives for t0 minutes.

What does the statement h(t0+15) tell you about the number of people infected?

 

 

 

h(t0+15) is the number of strains whose open-air survival time is 15 minutes.

 

h(t0+15) is the number of people (in thousands) infected by a strain 15 minutes after the common strain.

 

h(t0+15) is the number of people (in thousands) infected by a strain whose open-air survival time is 15 minutes shorter than the most common strain.

 

h(t0+15) is the number of people (in thousands) infected by a strain whose open-air survival time is 15 minutes longer than the most common strain.

 

h(t0+15) is the number of strains whose open-air survival time is 15 minutes longer than the most common strain.
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