PLEASE HELP
Find the discriminate of the quadratic equation 3x^2+2x-1=0...
Mathematics, 09.12.2020 09:10 Theresab2021
PLEASE HELP
Find the discriminate of the quadratic equation 3x^2+2x-1=0
Answers: 2
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The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
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Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).
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