- Find the exact value of cos (-11pi/12)?

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Find the volume of the solid formed by revolving the region bounded by the graphs of y= 2x^2+4x and y=0 about the y-axis? Chemistry Question Calculate the mass of Fe(NH4)2(SO4)2.6H2) required to prepare 25ml of 1.0M Fe(NH4)2(SO4)2? What is a positive times a positive? Determine the genotypes for each parrot parent? The temperature is?