Solve the problem.For a certain drug, the rate of reaction in appropriate units is given by 
= 
+ 
, where t is measured in hours after the drug is administered. Find the total reaction to the drug from t = 3 to t = 12.
A. 20.25
B. 9.07
C. 10.13
D. 21.99
Answer: B
Mathematics
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Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if sin ? = 
, then find the value of csc ?.
A. 
B. 
C. 
D. 
Mathematics
Use a graphing calculator to solve the system. Express solutions with approximations to the nearest thousandth. 
x + y = 50.4x - y = 3
A. ? B. {(4.746, -1.102)} C. {(-2.947, 8.789)} D. {(2.258, 2.097)}
Mathematics
Plot the point and state the quadrant, if any, in which the point is located.(-5, 2)
A. Quadrant III
B. Quadrant IV
C. Quadrant II
D. Quadrant I
Mathematics
Write the decimal as a percent.0.096
A. 96% B. 9.6% C. 0.096% D. 0.96%
Mathematics