Find any x-intercepts.f(x) = 2x2 - 18x + 40

A. -5 and -4
B. -5 and 4
C. 5 and -4
D. 5 and 4

Answer: D

Mathematics

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Find the limit . Hint: If x = rcos? and y = rsin?, then (x,y) --> (0, 0) if and only if r --> .

What will be an ideal response?

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Solve. =  + , for T2

A. T2 = 
B. T2 = 
C. T2 = 
D. T2 = 

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Factor the polynomial completely using the grouping method.4x2 - 5x + 9

A. (4x - 9)(x - 1) B. (4x - 1)(x - 9) C. prime D. (2x - 9)(2x - 1)

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Solve the equation by factoring.12x2 + 14x = 0

A. - , 0
B. - , 14
C. -  
D. 0

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Mathematics