Use the given functions to find the requested function.f(x) = 5x + 8, g(x) = 3x2Find (fg)(x).
A. 15x2 + 24x
B. 15x3+ 24x2
C. 15x + 24
D. 3x2 + 5x + 8
Answer: B
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Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R(x) = 50x - 0.5x2C(x) = 4x + 3.
A. 49 units B. 47 units C. 46 units D. 54 units
Provide an appropriate response.At the two points (x, y) where the graph of the equation x2 + 2xy + y2 = 36 crosses the x-axis, the tangent lines are parallel. Find the common slope of these tangents.
A. 1
B. 
C. -6
D. -1
Simplify the algebraic expression.7.81x - 12.84x
A. -5.03x2 B. -5.03x C. 20.65x D. 5.03x
Test the equation for symmetry with respect to the given axis, line, or pole.r = 3 + 3 cos ?;
the line ? = 
A. may or may not have symmetry with respect to the line ? = 
B. has symmetry with respect to the line ? = 