Explain why the graphing calculator cannot be used to solve or approximate solutions to all polynomial equations.

Mathematics

2 answers:

KATRIN_1 [288]2 years ago

5 0

Some polynomial equations have complex solutions.

Therefore, complex solutions cannot be found by graphing the related system or function in the Cartesian (x-y) plane.

Polynomial functions with all complex solutions do not have x-intercepts, and the related system of equations will not intersect.

Lelu [443]2 years ago

4 0

Let's put it this way: If you plot a few non-x-intercept points and then draw a curvy line through them,you will not know if you got the x-intercepts even close to being correct. The only way you can be sure of your x-intercepts is to set the quadratic equal to zero and solve. So its a matter of guessing from the pictures. Basicaly said, the calculator won't give you the exact result.

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Answer:

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Expected pay winning $25= $2.36

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Step-by-step explanation:

Probability P(3 hearts) = (13/52)×(12/51)×(11/50) = 0.013

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Probability P(drawing anything else)= 1 - 0.013 - 0.118= 0.869

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Expected pay for anything else= 0.869(0-5)$ =$(-4.347)

Expected value of one play=$ (0.585 + 2.353 -4.347) = -$1.41

c) Do not play the game.

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2 years ago

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levacccp [35]

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Edit: I just checked and it's definitely ZERO

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