Use the properties of real numbers to simplify the expression.- 
+ 
+ 
+ 
A. 0
B. 4
C. 8
D. 2
Answer: D
Mathematics
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A discrete probability distribution for a random variable X is given. Use the given distribution to find the requested information.Find E(X).
A. 2.00 B. 0.80 C. 0.70 D. 1.21
Mathematics
For the pair of functions, find the indicated domain.f(x) = x2 - 36, g(x) = 2x + 3Find the domain of g/f.
A. (-?, -6) ? (-6, 6) ? (6, ?)
B. (-?, ?)
C. 
? 
D. 
Mathematics
Solve the problem.Find the equation for the tangent plane to the surface 
at the point 
A. x + y + z = 4 B. -6x - 6y + 8z = 1 C. x + y + z = 1 D. -6x - 6y + 8z = 4
Mathematics
Write the following as an algebraic expression in u, u > 0.sin 
A. 
B. u
C. 
D. 
Mathematics