Use the distributive property to rewrite the algebraic expression without parentheses. Simplify.9(x + y)

A. 9x + y
B. 9x - 9y
C. 9xy
D. 9x + 9y


Answer: D

Mathematics

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Provide an appropriate response.Given f(x) = Ll, f(x) = Lr , and Ll = Lr, which of the following statements is false? I.  f(x) = Ll II.  f(x) = Lr III. f(x) does not exist.

A. none B. II C. III D. I

Mathematics

Solve the problem.The table represents a linear function. Find the slope and y-intercept of the line and use your answers to write an equation for f(x). 

A. f(x) = -4.5x + 1.6 B. f(x) = 4.5x - 1.6 C. f(x) = -1.6x + 4.5 D. f(x) = 1.6x + 4.5

Mathematics

Perform the indicated operation.(5b2 + 8b - 1) - (-2b2 - 8)

A. 7b2 + 8b + 7 B. 7b2 + 16b - 1 C. 3b2 + 16b - 1 D. 3b2 + 8b - 9

Mathematics

Find the equation of the tangent line to the curve when x has the given value.f(x) =  ; x = 5

A. y = -39x - 80  
B. y = -  +  
C. y = 13x - 16  
D. y =  + 

Mathematics