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eimsori [14]
3 years ago
7

What are two equivalent equations for x(5x-6)+13x-10

Mathematics
1 answer:
Naily [24]3 years ago
4 0
5x^2 +7x -10

5x^2 (-6x + 13x) - 10
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<em>Choose the first alternative</em>

\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}

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<u>Probabilities</u>

The requested probability can be computed as the ratio between the number of ways to choose two sophomores in alternate positions (N_s) and the total number of possible choices (N_t), i.e.

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_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C} \text{ ways to do it}

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\boxed{\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}}

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