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Doss [256]
2 years ago
10

Prove by contradiction that the graphs of y = 2x^3 - 3x + 5 and y = 2 - 3x do not intersect

Mathematics
1 answer:
Anuta_ua [19.1K]2 years ago
8 0
Hello,

So they don't intersect !!!!!!!!!!!!!!!!!!!!!!!

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Write the simplest polynomial function with the given roots 2i, square root of 3, and 4
Volgvan

Answer:

  • y = (x - 4)(x + 2i)(x - 2i)(x + √3)(x - √3) Possible answer
  • y = (x - 4)(x^2 + 4)(x^2 - 3)                    Possible answer

Step-by-step explanation:

The simplest answer is that 2i cannot be a lone root. It must have a twin that is - 2i

√3 has the same sort of rule. It cannot be a root all by itself. It also must have a twin, in this case -√3

So the answer must be

(x - 4)(x + 2i)(x - 2i)(x + √3)(x - √3)      <<< Possible answer

but this can be reduced even further.

  • (x + 2i)(x - 2i) = x^2 - x*2i + x*2i - 4i^2
  • (x + 2i)(x - 2i) = x^2 - 4(i)^2
  • (x + 2i)(x - 2i) = x^2  + 4.               Remember i^2 = - 1

By a similar method (x - √3)(x + √3) = x^2 - 3

So the polynomial is reduced to

(x - 4)(x^2 + 4)(x^2 - 3)  <<<< Answer

If this is not among your answers and the  factored form is not either, please tell me what is.

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Does this graph represent a function? Why or why not?
Dafna1 [17]
A. Yes because it passes the vertical line test
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Can someone help me , what is 525 x 358 ?
Ainat [17]

Answer:

187,950

Step-by-step explanation:

your welcome

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(Who ever Answers the question for this lil guy&gt; ʕ •ᴥ•ʔ, Gets brainliest!!)
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Once upon a time i was on brainly. I was asked to make a story and solve 15 divided by 1/9 so thats what this is :D Obviously I would do better stories on topics not math related but I thought it would do. I Used 15x1/9 to solve the equation and my helpful calculator UvU Thats when I got the ugly number of 1.66666667 as my answer I was annoyed but it would have to do. I finished typing these last words and submitted Hoping that i would get brainliest and give it away UvU

Step-by-step explanation:

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What is the five-number summary for this data set?
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B

Step-by-step explanation:

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