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March 25, 2017

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Area of a Triangle. The area in square meters of a triangle is given by A(x)=x^2+5x+6
a)Find A(5)

b)If the length of the triangle is x+3 then what is the base of the triangle?

  • math - ,

    a(5)=5^2+5*5+6
    compute that.

    Now, Area is also equal to 1/2 base*length
    but when x=5, length is 8, and area is as above.
    Area=1/2 (8)*base
    solve for base.

  • math - ,

    Can you let me know if I went wrong here

    A(5)=52+5(5)+6
    5A=25+25+6
    5A=56
    A=56/5

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