Solve.In a class of 14 students, 2 students got an A, 5 students got a B, 4 students got a C, and 3 students got a D on a test. How many ways can the grades be assigned?
A. 84,084
B. 1,681,680
C. 420,420
D. 2,522,520
Answer: D
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Find the volume of the described solid.The base of a solid is the region between the curve y = 3cos x and the x-axis from x = 0 to 
. The cross sections perpendicular to the x-axis are squares with bases running from the x-axis to the curve.
A. 
?
B. 
?
C. 2?
D. 
?
Provide an appropriate response.Simplify: 
What will be an ideal response?
Solve the problem.The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, 
where t is the number of minutes after injection of the drug. When will the drug be at its highest concentration? Approximate your answer rounded to two decimal places.
A. t = 3.65 minutes after the injection is given B. at the time of injection C. t = 4 minutes after the injection is given D. t = 0.55 minutes after the injection is given
Find the domain and range of the relation.{(6, 2), (-7, 0), (-2, -2), (11, -7)}
A. Domain = {-7, -2, 6, 11}; range = {-7, -2, 0, 2} B. Domain = {-7, 0, 2, 6}; range = {-7, -2, 11} C. Domain = {-7, -2, 6, 11}; range = {0, 2} D. Domain = {-2, 0, 6, 11}; range = {-7, -2, 2, 11}