Solve the problem.A computer virus begins to spread among the computers in a large corporation. The percent of the computers that are infected is approximately 
where t is the number of hours that have elapsed since the first computer contracted the virus. Find the instantaneous rate of change of the percent of computers infected at 
hours.
A. 17%/hour
B. 20%/hour
C. 12%/hour
D. 23%/hour
Answer: B
Mathematics
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = ?/6 to x = ?/2. The cross sections perpendicular to the x-axis are circular disks with diameters running from the curve 
to the curve 
A. (
- 1) ? + 
B. 
- 
C. (2
- 2) ? - 
D. 
- 
Mathematics
Solve.x2 + 5x - 24 = 0
A. {-8, 3} B. {8, -3} C. {-8, 1} D. {8, 3}
Mathematics
Subtract.
A. 2,631 B. 2,633 C. 2,571 D. 10,633
Mathematics
Determine whether the graph is the graph of a function.
A. Yes B. No
Mathematics