ECCOTHES

1 answer:

5 0

Answer:

sorry ,but l don't know what is it?!

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timurjin [86]

Answer:

Step-by-step explanation:

$T = \frac{1}{2}m^{2}+2m - 4\\\\T = 2m + 4\\\\\frac{1}{2}m^{2}+2m - 4 = 2m + 4\\\\\frac{1}{2}m^{2}+2m - 4 - 2m - 4 = 0$

Combine like terms

$\frac{1}{2}m^{2}+2m - 2m - 4 - 4 = 0\\\\\frac{1}{2}m^{2} - 8 = 0\\\\\frac{1}{2}m^{2} =8\\\\m^{2} = 8*2\\\\m^{2} = 16\\\\m = \sqrt{16}$

m = ± 4

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solong [7]

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17, 18 and 19 ... ⇒3n+3=54

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zheka24 [161]

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