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jonny [76]
3 years ago
8

Please help and show work thank you!

Mathematics
2 answers:
MariettaO [177]3 years ago
7 0

Answer:

1)-0.65    2) 28.8   3) 747.6

Step-by-step explanation:

  1. divide the numerator (-13) and the denominator (20)
  2. 32 x 90= 2880, divide 2880 by 100 equals to 28.8

    3. multiply 12 by 62.3

I hope this helps!

oksano4ka [1.4K]3 years ago
6 0
The is tkdb rndnrndnrndnrjdbr r
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The quadratic function g(x)=ax^2+bx+c has the complex roots (10+i) and (10-i). You may assume that a=1.
Gemiola [76]

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Expanding and simplifying

g(x)=(x-(10+i))(x-(10-i))\\=x^2-x(10-i)-x(10+i)+(10+i)(10-i)\\=x^2-10x+xi-10x-xi+100-i^2\\=x^2-10x-10x+100+1\\=x^2-20x+101

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