Find the area of the triangle. If necessary, round the answer to two decimal places.A = 23°, b = 9, 
A. 3.52
B. 3.53
C. 3.50
D. 3.51
Answer: A
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = (2x - 9y)3
A. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c ? 0
B. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
D. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
Find the value of (f ? g)' at the given value of x.f(u) = u3, u = g(x) = 
, x = 3
A. - 147 B. 147 C. 882 D. - 882
Find the area of the shaded region.
A. 
B. 
C. 
D. 
Determine whether the following table can be modeled exactly by an exponential function. t 3.45 4.45 5.45 6.45 y 35.06 59.60 101.95 173.32
What will be an ideal response?