carloslil carloslil

18-01-2017
Mathematics

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serrians triangle has a height of 3x-4 and the base length is 8x+4 what is the area of the triangle

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ferretgirl02 ferretgirl02

18-01-2017

Area of a triangle is base × height ÷2
base=8x+4 x=-4/8 x=-1/2
height=3x-4 x=4/3

A=b×h÷2
A=(-1/2×4/3)÷2
A=(-4/6)÷2
A=(-4/6)÷2/1 to divide by fractions flip the second and multiply
A=-4/6×1/2
A=-4/12
A=-1/3

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