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DaniilM [7]
2 years ago
10

Which of these are NOT potential rational roots of 8x^3 + 15x^2 – 7x – 5?

Mathematics
1 answer:
VashaNatasha [74]2 years ago
5 0

The numbers that are not potential rational roots of the polynomial function, are numbers other than any of \pm 1, \pm \frac 12,\pm \frac 14,\pm \frac 18,\pm 5, \pm \frac 52, \pm \frac 54, \pm \frac 58

The polynomial function is given as:

g(x) = 8x^3 + 15x^2 - 7x -5

<h3>How to calculate the potential rational roots</h3>

The potential rational roots of a polynomial function g(x).

Such that: g(x) = px^n + ....+q

is:

Roots = \pm \frac{Factors\ of\ q}{Factors\ of\ p}

So, we start by listing out the factors of 5 and 8

5 =1 ,5

8 =1 ,2,4,8

Roots = \pm \frac{Factors\ of\ q}{Factors\ of\ p} becomes

Roots = \pm \frac{1,5}{1,2,4,8}

Simplify

Roots = \pm 1, \pm \frac 12,\pm \frac 14,\pm \frac 18,\pm 5, \pm \frac 52, \pm \frac 54, \pm \frac 58

Hence, the numbers that are not potential rational roots of the polynomial function, are numbers other than any of \pm 1, \pm \frac 12,\pm \frac 14,\pm \frac 18,\pm 5, \pm \frac 52, \pm \frac 54, \pm \frac 58

Read more about potential rational roots at:

brainly.com/question/7594092

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The length of a rectangular house is two and a half times its width. Solve the problem using x to denote the shorter side of the
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a.  The construct the expression for the area of the rectangle in terms of x is y=2.5x

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Find the total area of the four walls of a room 12 m long, 10 m wide and 4 m high.
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Answer:

<h2>416m^2</h2>

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<h3>Area = Length * Width</h3><h3>Volume = Length * Width * Height</h3>

<h3>As we all can see,from the question we were given the parameters for calculating volume instead of the ones for calculating "area"</h3>

<h3>But from the the parameters, we can calculate for the total surface area</h3>

<h3>Floor = 12m ×10m = 120m^2</h3>

<h3>Roof = 12m × 10m = 120m^2</h3>

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A particular train is 25 feet tall. A model of the train was built with a scale of 4 inches which is equal to 5 feet. How tall i
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Answer:

200 muffins

Step-by-step explanation:

The selling price of each muffin = $2

The cost price of each muffin = $1.40

The price of electricity = $120

If the number of muffins that Jenny sells in a day is x, then, Jenny's total cost in a day is:

120 + (1.4 * x) = 120 + 1.4x

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