Can somebody plz help and explain this
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Mathematics, 21.06.2019 16:50
The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left
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What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)
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Mathematics, 21.06.2019 20:30
Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.
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