Solve the problem.The number of reports of a certain virus has increased exponentially since year 0. The number of cases can be approximated using the function 
where t is the number of years since year 0. Estimate the number of cases in year 40.
A. 333 cases
B. 167 cases
C. 125 cases
D. 160 cases
Answer: B
Mathematics
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Use cylindrical coordinates to find the volume of the indicated region.the region bounded below by the xy-plane, laterally by the cylinder 
and above by the plane 
A. 7? B. 196? C. 49? D. 28?
Mathematics
Evaluate the expression xy for the given values of the variables.x = -3.43, y = -6.1
A. -2.67 B. 9.53 C. 20.923 D. -9.53
Mathematics
Decompose into partial fractions.
A. 
- 
B. 
+ 
C. 
- 
D. 
- 
Mathematics
Determine if the given ordered triple is a solution of the system.(3, -1, 4) x + y + z = 6 x - y + 5z = 203x + y + z = 14
A. not a solution B. solution
Mathematics