Solve the problem.Find the moment of inertia about the y-axis of the thin infinite region of constant density 
in the first quadrant bounded by the coordinate axes and the curve 
.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the integral.
ln 7x dx
A. 15.47 B. 15.26 C. 17.82 D. -4.11
Mathematics
Use a vertical format to find the product.5y3 + 7y2 + 6y + 7
A. 25y4 + 10y3 + 49y2 + 42y + 49 B. 45y4 + 49y3 + 42y2 + 49y C. 45y4 + 45y3 + 49y2 + 14y D. 25y4 + 45y3 + 44y2 + 47y + 14
Mathematics
Graph the parabola described.Focus at (2, 0); Directrix the line x = -2
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration, C(t), in milligrams per liter after t hours is modeled by C(t) = 
.Estimate the drug's concentration after 2 hours. (Round to the nearest hundredth.)
A. 0.98 milligrams per liter B. 1.71 milligrams per liter C. 0.92 milligrams per liter D. 1.77 milligrams per liter
Mathematics