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Yuliya22 [10]
3 years ago
12

Which expression is equivalent to 5(c + 2(c+d)

Mathematics
1 answer:
Fofino [41]3 years ago
5 0
15c+10d that’s the answer
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Evaluate C(44,21) use scientific notation, round to 3 decimal places as needed.
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Solve this quadratic equation by completing the square. x2 + 10x = 26
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                        x² + 10x = 26
                x² + 10x + 25 = 26 + 25
          x² + 5x + 5x + 25 = 51
x(x) + x(5) + 5(x) + 5(5) = 51
         x(x + 5) + 5(x + 5) = 51
                 (x + 5)(x + 5) = 51
                          (x + 5)² = 51
                             x + 5 = ±√(51)
                                 - 5      - 5
                                   x = -5 ± √(51)
                                   x = -5 + √(51)    or    x = -5 - √(51)
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3 years ago
Read 2 more answers
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