The inequality ** - 5x² +420 can be solved by OA) considering all cases OB) graphing OC) using intervals OD) all of the above Question 18 Which inequality has xs-4 or 0≤x≤3 as its solution? A) x(x-3)(x+4) 50 OB)-2x(x-3)(x+4) 20 C) 100x(x-3)(x+4) ≤0 OD) all of the above

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Q: etermine the interval of convergence for the series x+ 9x² 27x³ 81x4 + + 5 7 9 + ...

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Q: Minimize Z=8x+12y subject to 4x+6y214, 4x+5y9, x>0, y20 M=?

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