Solve the problem.Suppose the demand for a certain item is given by 
where p represents the price of the item. Find D'(7).
A. -42
B. -40
C. -52
D. -54
Answer: D
Mathematics
You might also like to view...
Solve the problem.Find the mass of a tetrahedron of density 
bounded by the coordinate planes and the plane 
.
A. 60
B. 45
C. 50
D. 
Mathematics
Solve the problem, assuming that the triangles are similar. 
?
In the left triangle, the hypotenuse has length 10, and the longer leg has length 8. In the right triangle, the hypotenuse has length 5, the longer leg has length 4, and the shorter leg has length 3. Find the length of the shorter leg of the left triangle.
A. 9 B. 4 C. 6 D. 3
Mathematics
Solve the equation.3x = 81
A. 27 B. 5 C. 4 D. 3
Mathematics
Simplify.
A. -a
B. - 
C. a
D. - 
Mathematics