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Algebra 2

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Are a of a sail. The area in square meters for a triangular sail is given by A(x) = x2 + 5x + 6.
a) Find A (5).

b) If the height of the sail is x +3 meters, then what is the length of the base of the sail?

  • Algebra 2 - ,

    For the first problem don't you replace all the x with 5 and solve?

  • Algebra 2 - ,

    A(5)=5^2+5*5 + 6

    On the second part,

    1/2 b*h=answer in first part, solve for b.

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