For the given functions, find the requested function or functional value.For f(x) = 5x + 7 and g(x) = 9x2 - 3x + 6, find (g ? f)(2).
A. 97
B. 108
C. 187
D. 2556
Answer: D
Mathematics
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Evaluate the expression without using a calculator.ln e9
A. log 9
B. -9
C. 9
D. 
Mathematics
Find area of figure. Round to the nearest hundredth if necessary.Find the area of a rectangle measuring 6
mi by 11
mi.
A. 66
mi2
B. 73
mi2
C. 18 mi2
D. 36 mi2
Mathematics
Find the vertex, focus, and directrix of the parabola.y2 = 16x
A. vertex: (0, 0)
focus: (4, 0)
directrix: x = -4
B. vertex: (0, 0)
focus: (0, 4)
directrix: y = -4
C. vertex: (0, 0)
focus: (-4, 0)
directrix: x = 4
D. vertex: (0, 0)
focus: (0, 4)
directrix: y = -4
Mathematics
Find the volume of a regular pyramid with an equilateral triangle with side 9.2 meters for the base and height 12.6 meters. Round the answer to two decimal places.
(a) 461.79m² (b) 153.93m² (c) 72.35m² (d) 81.23m²
Mathematics