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Ostrovityanka [42]
3 years ago
12

How many complex roots does the equation below have?

Mathematics
1 answer:
Maslowich3 years ago
4 0

Answer:

  The number of complex roots is 6.

Step-by-step explanation:

Descartes's rule of signs tells you that the number of positive real roots is 0. The number of negative real roots will be at most 2. The minimum value of the left side will be between x=0 and x=-1, but will never be negative. Thus all six roots are complex.

_____

The magnitude of x^3 will exceed the magnitude of x^6 only for values of x between -1 and 1. Since the magnitude of either of these terms will not be more than 1 in that range, the left-side expression must be positive everywhere.

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Answer:

The total members in the Spanish Club  = 50

Step-by-step explanation:

Let the total members in the Spanish Club = x

Now, number of girls in the club = 30

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or, (\frac{3}{5})  \times  x =  30\\

Now, solving for x, we get:

x = 30 \times\frac{5}{3}   = 50

or, x   = 50

Hence,the total members in the Spanish Club  = 50

7 0
3 years ago
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miv72 [106K]

Step-by-step explanation:

the proof is given above

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Answer:

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He gets $200 for showing up and gets paid $15 an hour write a linear equation to represent his earnings
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