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Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11