For the given functions f and g, find the requested composite function.f(x) = 4x2 + 5x + 8, g(x) = 5x - 6;
Find (g ? f)(x).
A. 4x2 + 25x + 34
B. 4x2 + 5x + 2
C. 20x2 + 25x + 46
D. 20x2 + 25x + 34
Answer: D
Mathematics
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Simplify the expression. Assume all variables represent positive real numbers.- 
A. 10
B. not a real number
C. -16
D. -4
Mathematics
A parabolic mirror reflects light in a beam when the light source is placed at its focus. How far from the vertex of the parabolic reflector should the light source be placed? (All measurements are in feet.)
?
?
?
A. 4 feet B. 1 foot C. 16 feet D. 32 feet E. none of these
Mathematics
Solve.x3 + 64
A. -4, 1 ± i
B. -4, 2 ± 2i
C. 4, -1 ± i
D. 4, -2 ± 2i
Mathematics
Arrange in order from smallest to largest.9.09, 9.9, 9.099, 9.999
A. 9.099, 9.09, 9.999, 9.9 B. 9.09, 9.099, 9.9, 9.999 C. 9.999, 9.9, 9.099, 9.09 D. 9.09, 9.9, 9.099, 9.999
Mathematics