Evaluate: 19 – (–5) – 4
A) 14
B) 18
C) 20
D) 15
E) 40
C) 20
Mathematics
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Solve the problem.Find the center of mass of the hemisphere of constant density bounded 
and the 
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 3
D. 
= 0, 
= 0, 
= 6
Mathematics
Find the value of the function.Given f(x) = 3x2 - 4x - 2, find f(-6).
A. 102 B. 132 C. 4 D. 130
Mathematics
Perform the transformation.Write cot x in terms of sin x.
A. 
B. 
C. 
D. ± 
Mathematics
Convert as indicated.7.5 L to deciliters
A. 0.75 dl B. 750 dl C. 0.075 dl D. 75 dl
Mathematics