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jekas [21]
3 years ago
6

Please help!!! will give brainliest!!!

Mathematics
1 answer:
Whitepunk [10]3 years ago
7 0
Yeah do that’s will help you
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The function f(x) = x3 – 8x2 + x + 42 has zeros located at 7, –2, 3. Verify the zeros of f(x) and explain how you verified them.
xeze [42]

Answer:

  • zeros are {-2, 3, 7} as verified by graphing
  • end behavior: f(x) tends toward infinity with the same sign as x

Step-by-step explanation:

A graphing calculator makes finding or verifying the zeros of a polynomial function as simple as typing the function into the input box.

<h3>Zeros</h3>

The attachment shows the function zeros to be x ∈ {-2, 3, 7}, as required.

<h3>End behavior</h3>

The leading coefficient of this odd-degree polynomial is positive, so the value of f(x) tends toward infinity of the same sign as x when the magnitude of x tends toward infinity.

  • x → -∞; f(x) → -∞
  • x → ∞; f(x) → ∞

__

<em>Additional comment</em>

The function is entered in the graphing calculator input box in "Horner form," which is also a convenient form for hand-evaluation of the function.

We know the x^2 coefficient is the opposite of the sum of the zeros:

  -(7 +(-2) +3) = -8 . . . . x^2 coefficient

And we know the constant is the opposite of the product of the zeros:

  -(7)(-2)(3) = 42 . . . . . constant

These checks lend further confidence that the zeros are those given.

(The constant is the opposite of the product of zeros only for odd-degree polynomials. For even-degree polynomials. the constant is the product of zeros.)

3 0
2 years ago
8. a number increased by five and then divided by two
Butoxors [25]

Answer:3

Step-by-step explanation:

1+5=6

6/2=3

4 0
3 years ago
Read 2 more answers
Two boards are 26 meters long altogether. One board is 8 meters long. How long is the other board?
Aleonysh [2.5K]
I think the answer is 18 because together, they are 26 meters and one is 8 so u have to subtract the total with 8 which is 26-8. the answer to that would be 18.
ANSWER: 18 meters
6 0
3 years ago
Read 2 more answers
A fish processing company in Charlotteville processes three types of products: Type A, Type B and Type C. Its operations involve
Neporo4naja [7]

Answer:

A fish processing company in Charlotteville processes three types of products: Type A, Type B, and Type C. Its operations involve three basic activities: cleaning, cutting and packaging.

Step-by-step explanation:

8 0
3 years ago
Prove that sin(n) diverges
Ivahew [28]
If you look at the graph of sin(n), you can notice that it oscillates every kpi/2 when k is odd. This oscillation proves that sin(n) diverges.
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3 years ago
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