3 years ago

Solve these two problems: (x-1/x)^8 and (2x-1/2x)^9 Thanks

Mathematics

1 answer:

dalvyx [7]3 years ago

3 0

Answer:

Step-by-step explanation:

1. (x + 1) • (x + 8)

2. (x + 1) • (x + 8)

I simplified the equations now you can solve the rest!

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gtnhenbr [62]

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4 years ago

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Mrac [35]

You can answer this by starting with the number of games team C won and then use this to represent how many teams B and A won.

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4 years ago

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4 years ago

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4 years ago

17. Write the equation of a line that is perpendicular to the given line and that passes through the given point.

nataly862011 [7]

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\\text{We have the line in point-slope form:}\\\\y-y_1=m(x-x_1)\\\\m-slope\\\\y-2=\dfrac{7}{3}(x+5)\to m_1=\dfrac{7}{3}\\\\\text{therefore}\ m_2=-\dfrac{1}{\frac{7}{3}}=-\dfrac{3}{7}.\\\\\text{We have the slope}\ m=-\dfrac{3}{7}\ \text{and the point}\ (-4,\ 9).\ \text{Substitute:}\\\\y-9=-\dfrac{3}{7}(x-4))\\\\\boxed{y-9=-\dfrac{3}{7}(x+4)}$

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3 years ago