Solve the equation. Don't forget to first simplify each side of the equation, if possible.5(3x - 3) = 16x

A. -15
B. 15
C. 3
D. -3

Answer: A

Mathematics

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Solve the problem.Suppose that the random variables (X, Y) have joint PDF  Find k and P(Y > 4).

A. ; 4.22
B. ; 0.7
C. 36; 4.22
D. 36; 0.7

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Find the domain of the function. Put your answer in set-builder notation.f(x) = 

A. {x 
B. {x  
C. {x  
D. {x  

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Find the common ratio, r, for the given geometric sequence.1, -3, 9, -27, . . .

A. -4 B. 3 C. 81 D. -3

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Use a graphing calculator to solve the system.4x + y = 16  x + 3y = -7

A. {(5, -4)} B. {(5, 4)} C. {(3, 4)} D. {(-5, -4)}

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Mathematics