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Given f(x) = 3 - 4x and g(x) = x2 + 3, find (f ο g)(-2).? Why is the integral of (3+cos x) the same as the integral of (3)? 7 up being sold? Can someone answer this for me and show me the steps? What mass of BaBr2 contains 3.72 moles of Br? You dilute 3.97mL of a concentrated 6.00M hydrobromic acid solution to a total volume of 175mL. Whats the concentratn of the dilute solution?