Determine whether (f ? g)(x) = x and whether (g ? f)(x) = x.f(x) = 
, g(x) = x
A. Yes, no
B. No, no
C. No, yes
D. Yes, yes
Answer: B
Mathematics
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Add or subtract as indicated. Make sure that your answer is reasonable by estimating first.3.377 + 1.198
A. 2.179 B. 5.575 C. 4.575 D. -2.179
Mathematics
Write the following proportion.40 is to 5 as 104 is to 13
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Graph the ellipse and locate the foci.
+ 
= 1
A. foci at (
, 0) and (-
, 0)
B. foci at (0, 2
) and (0, -2
)
C. foci at (2
, 0) and (-2
, 0)
D. foci at (2
, 0) and (-2
, 0)
Mathematics
Solve.0.07y + 0.08(4000 - y) = 0.49y
A. {160} B. {1600} C. {640} D. {1920}
Mathematics