Determine whether (f(g(x)) = x and whether (g (f(x)) = x.f(x) = 
, g(x) = x
A. No, no
B. Yes, yes
C. No, yes
D. Yes, no
Answer: A
Mathematics
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Solve the problem.One end of a pool is a vertical wall 16.0 ft wide. What is the force exerted on this wall by the water if it is 7.00 ft deep? The density of water is 62.4 lb/ft3.
A. 3490 lb B. 48,900 lb C. 12,200 lb D. 24,500 lb
Mathematics
Solve the equation.0.13(x + 30) + 0.17(x + 60) = -12.9
A. {30} B. {-90} C. {90} D. {-30}
Mathematics
The graph of 
is given in the figure. State whether 
or 
A. a < 0 B. a > 0
Mathematics
Solve the problem.A surveyor recording data for a new subdivision measured an angle as 16.77°. The next day, a different surveyor measured the same angle as 16°34'. Find the difference between these measurements (i) to the nearest minute and (ii) to the nearest hundredth of a degree.
A.
| (i) 43' | (ii) 0.43° |
B.
| (i) 35' | (ii) 0.39° |
C.
| (i) 80' | (ii) 1.34° |
D.
| (i) 12' | (ii) 0.20° |
Mathematics