The circumference of a circle is 19πinches. find the radius. c=2πr

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Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price