3 years ago

If you can help with as many as you can that would be greatly appreciated.

Mathematics

1 answer:

Solnce55 [7]3 years ago

6 0

9. 0.26666
10. 2.375
11. 7/20
12. 206111/<span>50000</span>

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$\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=-1&&-1&a+1&-a-b-1\\---&---&---&---&---\\&1&-a-1&a+b+1&c-a-b-1\\\end{array}$

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