27-05-2015
Mathematics

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Please help with this and more, question attached

Please help with this and more question attached class=

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27-05-2015

A = h(b1 + b2) / 2

Multiply each side by 2: 2A = h(b1 + b2)

Divide each side by 'h' : 2A/h = b1 + b2

Subtract b2 from each side: b1 = 2A/h - b2

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