Find the area of triangle ABC (see the figure) with the given information. Round to the nearest tenth. 
a = 36.2 feet, c = 72.4 feet
A. 1159 sq ft
B. 1143.9 sq ft
C. 1139.7 sq ft
D. 1153.2 sq ft
Answer: B
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Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 4p2
B. 
C. 
D. 
Write the equation of the line with the given slope and y-intercept.slope 
;y-intercept (0, 2)
A. y = - 
x - 2
B. y = 
x + 2
C. y = 
x - 2
D. y = - 
x + 2
Graph the function. Describe its position relative to the graph of the indicated basic function.f(x) = 5 - 4-x; relative to f(x) = 4x
A. Moved up 5 unit(s);
reflected across, y-axis;
reflected across x-axis;
B. Reflected across y-axis;
reflected across x-axis;
moved down 5 unit(s)
C. Moved up 5 unit(s);
reflected across, y-axis;
reflected across x-axis;
D. Reflected across y-axis;
reflected across x-axis;
moved up 5 unit(s)
Evaluate the composition of functions.Let f(x) = x2 + 4 and g(x) = 2x + 7. Find (g ? f)(5).
A. 65 B. 51 C. 293 D. 36