B. (x-20)(x+9)=0
Mathematics, 10.02.2021 17:30 phelanpearson3995
Which quadratic equations has the solution set [-20,9]
A. (x+20)(x-9)=0
B. (x-20)(x+9)=0
C. (x-5)(x-4)=0
D. x^2-9x+20=0
E. x^2-11x+180=0
F. x^2+11x-180
Answers: 3
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Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.
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Which quadratic equations has the solution set [-20,9]
A. (x+20)(x-9)=0
B. (x-20)(x+9)=0
B. (x-20)(x+9)=0
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