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nikitadnepr [17]
3 years ago
14

Which of the following is a polynomial function in standard form with zeros at –8, –1, and 3?

Mathematics
2 answers:
telo118 [61]3 years ago
8 0
The answer is A because zeros of polynomial functions are found by setting each factor equal to zero and solving for x. The zeros of a function will be the opposite sign of the numbers inside each factor.
Tanya [424]3 years ago
4 0
<h2>Answer:</h2>

Option: C is the correct answer.

The polynomial in standard form is:

   C)    f(x)=x^3+6x^2-19x-24

<h2>Step-by-step explanation:</h2>

The standard form of a equation of a polynomial is written as :

  We arrange the terms from least to highest power of x.

We know that if a polynomial has roots as:

a, b and c then the equation of the polynomial is given by:

f(x)=(x-a)(x-b)(x-c)

Here we  have: a= -8 , b= -1 and c=3

Hence, the equation of the circle is given  by:

f(x)=(x-(-8))(x-(-1))(x-3)\\\\\\f(x)=(x+8)(x+1)(x-3)

which on expanding gives:

(x+8)(x+1)(x-3)=(x^2+9x+8)(x-3)\\\\(x+8)(x+1)(x-3)=x^3-3x^2+9x^2-27x+8x-24\\\\(x+8)(x+1)(x-3)=x^3+6x^2-19x-24

Hence, the standard equation of the polynomial is:

         f(x)=x^3+6x^2-19x-24

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Write the equation of the line that passes through (2,3) and (4, 1) in point-slope form. Use (2,3) for (x1, y1).
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The point slope form is

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5 0
3 years ago
Donis bought a t-shirt for $15 and jeans for $35.50. If the sales tax rate is 8.25%. What is the sales tax for the t-shirt and j
SOVA2 [1]
<h3>Answer: 4 dollars and 17 cents</h3><h3>This is the same as saying $4.17</h3>

====================================================

Explanation:

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and this rounds to 4.17, which is the amount of sales tax charged.

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---------

Extra info:

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Another way to get the grand total is to multiply 1.0825 by the previous subtotal (50.50) getting 50.50*1.0825 = 54.66625 and that rounds to 54.67

The multiplier 1.0825 effectively means "increase by 8.25%"

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