Solve the problem.A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration, 
in milligrams after t hours is modeled by 
Estimate the drug's concentration after 5 hours. (Round to the nearest hundredth.)
A. 1.39 mg
B. 0.44 mg
C. 1.51 mg
D. 0.32 mg
Answer: D
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Find the solution set for each inequality. Graph the solution set on a number line and write it in interval notation.|x - 8| + 7 ? 9
A. [6, 10]
B. (6, 10)
C. ?
D. [6, 9]
Hooke’s Law states that the force F required to compress or stretch a spring (within its elastic limits) is proportional to the distance d that the spring is compressed or stretched from its original length. That is, where k is the measure of the stiffness of the spring and is called the spring constant. The table below shows the elongation d in centimeters of a spring when a force of F kilograms is applied.
Sketch a scatter plot of the data.
a. 
b. 
c. 
d. 
e. 
Find the slope of the line tangent to the curve at the given point.y = 8 tan x; x = 
A. 32
B. 16
C. 
D. 8
Find all intercepts for the given function. Round to the nearest tenth if necessary.f(x) = 2(x + 1) - 8
A. x-int: (-2, 0); y-int: (0, -6) B. x-int: (2, 0); y-int: (0, -2) C. x-int: (2, 0); y-int: (0, -6) D. x-int: (-2, 0); y-int: (0, -2)