Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = 
, g(x) = x
A. Yes, no
B. Yes, yes
C. No, no
D. No, yes
Answer: C
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Identify the type of surface represented by the given equation.
+ 
+ 
= 1
A. Ellipsoid
B. Paraboloid
C. Sphere
D.
| Elliptic cone |
Solve the proportion equation.
= 
A. 0.0588
B. 0.588
C.
| 0.10625? |
D. 2.5
Four heirs (A, B, C, and D) must divide fairly an estate consisting of three items - a house, a cabin and a boat - using the method of sealed bids. The players' bids (in dollars) are:
The original fair share of player C is worth
A. $64,000. B. $65,500. C. $18,000. D. $62,000. E. none of these
Solve the problem.A rectangular sea aquarium observation window is 16.0 ft wide and 4.00 ft high. What is the fluid force on this window if the upper edge is 3.00 ft below the surface of the water. The density of seawater is 64.0 lb/ft3.
A. 20,500 lb B. 16,900 lb C. 41,000 lb D. 25,100 lb