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2 years ago

What are the possible rational zeros for f(x)=3x^4+x^3-13x^2-2x+9?

Mathematics

1 answer:

zaharov [31]2 years ago

4 0

Answer:

Option 4 (±1, ±1/3, ±3, ±9) is the correct option.

Step-by-step explanation:

The given expression is $f(x)=3x^{4}+x^{3}-13x^{2}-2x+9$

We have to find the possible rational zeros for the function.

So by the rational zero theorem factors will be

=±(Factors of constant term 9)/±factors of coefficient of $x^{4}$

=±(Factors of 9)/±(Factors of 3)

=±(1, 3, 9)/±(1, 3)

=±(1, 3, 9, 1/3)

So option 4 is the correct answer.

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Chris and Josh have a total of 1,800 stamps in their collections, Josh and Jessica have a total of 2,200 stamps, and Jessica and

LiRa [457]

Answer: 3000 stamps

Step-by-step explanation:

Given

Chris and Josh have 1800 stamps

Josh and Jessica have 2200 stamps

Jessica and Chris have 2000 stamps

Suppose Chris, Josh, and Jessica have $x,y, \text{and}\ z$ stamps

$\therefore x+y=1800\quad \ldots(i)\\\Rightarrow y+z=2200\quad \ldots(ii)\\\Rightarrow z+x=2000\quad \ldots(iii)\\\text{Add (i), (ii), and (iii)}\\\Rightarrow 2(x+y+z)=1800+2200+2000\\\Rightarrow x+y+z=3000$

Thus, all three have 3000 stamps

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2 years ago

What is -2x - 10 = - 14x - 7?

jek_recluse [69]

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2 years ago

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Mars2501 [29]

Answer:

Step-by-step explanation:

Multiply the length and width, or c and b to find their area. Multiply this measurement by two to account for both sides. Add the three separate measurements together. Because surface area is the total area of all of the faces of an object, the final step is to add all of the individually calculated areas together.

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2 years ago

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What’s 7y+8=57?????!!?!????

forsale [732]

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The function f(t)=t^2+12t-18 represents a parabola. Part A: Rewrite the function in vertex form by completing the square. Show y

ale4655 [162]

The function in vertex form is $f(t) = (t+6)^{2} -54$ (refer to your other post I solved it there).
The general form of quadratic equations in vertex form is $f(x) = a(x-h)^{2} +k$ , where (h, k) is the vertex of the parabola.
Here, a = 1, h = -6 and k = -54
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2 years ago