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A cylinder's volume is given by (πx^3+4πx^2-3πx-18π cm^3). If the radius of the cylinder is (x+3) cm, what is the height in terms of x? ? A gas has a volume of 645 mL at 67.9 °C. What is the final temperature in °C if the volume changes to 459 mL? Find the value of a&b if (x^2-5x+4) is a factor of the polynomial 2x^3+ax^2+bx-4. Express in factored form.? Is antigravity a substance that exist now only in sci-fi novels? Will chemists one day in year million (far future) invent it eventually? The common ratio for the following geometric sequence 1/3 3/15 9/75 27/375?