For the given functions f and g , find the indicated composition.f(x) = -4x + 9,g(x) = 5x + 3(g?f)(x)
A. 20x + 48
B. -20x + 21
C. -20x - 42
D. -20x + 48
Answer: D
Mathematics
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Solve the problem.A land developer wants to develop 8 acres of land. Each lot in the development is to be 
of an acre. How many lots will the land developer have in the 8 acres?
A. 
lot
B. 1
lots
C. 2
lot(s)
D. 28 lots
Mathematics
Sketch the level curve z = k for the indicated values of k.z = x - cos y, k = -2, -1, 0, 1, 2
A. 
B. 
C. 
D. 
Mathematics
Write the equation for the shape described.The circle with center (19, 17), containing the origin
A. (x - 19)2 + (y - 17)2 = 25 B. (x - 17)2 + (y - 19)2 = 650 C. (x - 19)2 + (y - 17)2 = 650 D. (x - 17)2 + (y - 19)2 = 25
Mathematics
Classify the angle as acute, right, obtuse, or straight.
A. Acute B. Obtuse C. Right D. Straight
Mathematics