Solve the equation by factoring.x2 - 5x + 4 = 0

A. {1, 4}
B. {-1, -4}
C. {-1, 4}
D. {1, -4}

Answer: A

Mathematics

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Use a trigonometric substitution to evaluate the integral.

A. tan-1 7 - tan-1 
B. tan-1 3 - tan-1 7
C.  tan-1 7 -  tan-1 
D. tan-1  - tan-1 7

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Evaluate the expression.61

A.
B. 6
C. 1
D. -6

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Solve the problem.A chemical solution contains 7% lead. How much lead is in 2.5 ml of solution?

A. 35.714 ml B. 3.571 ml C. 1.75 ml D. 0.175 ml

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Fill in the blank with one of the words or phrases listed below. Monomials, binomials, and trinomials are all examples of .

A. FOIL B. polynomials C. factoring D. greatest common factor

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Mathematics