Mathematics, 11.02.2020 20:42 haybaby312oxdjli
In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Gloria has scored 90, 80, and 86 on the first three. What range of scores on the fourth test will give Gloria a B for the semester (an average between 80 and 89, inclusive)? Assume that all test scores have a non-negative value. Express your answer in interval notation.
Answers: 2
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The $x$-intercepts of the parabola $y = x^2 + bx + c$ are $(-3,0)$ and $(5,0).$ find the equation of the parabola, and submit your answer in $y = ax^2 + bx + c$ form.
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In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal
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In a class in which the final course grade depends entirely on the average of four equally weighted...
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