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Mathematics, 21.06.2019 14:00
The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.
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Mathematics, 21.06.2019 19:30
Factor the polynomial 4x4 β 20x2 β 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 β 5) (4x2 β 3)(x2 β 5) (4x2 β 5)(x2 + 3) (4x2 + 5)(x2 β 3)
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Mathematics, 21.06.2019 20:00
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0
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Mathematics, 21.06.2019 21:50
Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least βc.β using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least βcβ?
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