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Stella [2.4K]
2 years ago
13

A polynomial of degree at least 3 degree where all the zeros are positive whole numbers

Mathematics
1 answer:
Allisa [31]2 years ago
7 0

Answer:

x^{3} - 6\cdot x^{2} + 11\cdot x - 6

Step-by-step explanation:

A polynomial of a third degree is a product of three binomials of the form x - a. Let consider the following polynomial:

(x-1) \cdot (x-2)\cdot (x-3)

After some algebraic handling, the standard form of the polynomial is:

(x^{2}-3\cdot x +2)\cdot (x-3)

x^{3} - 3\cdot x^{2} + 2\cdot x - 3\cdot x^{2} + 9\cdot x - 6

x^{3} - 6\cdot x^{2} + 11\cdot x - 6

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Is it possible for an odd function to have the interval 0 infinity) as its domain?
mojhsa [17]

NO!

Prove by contradiction. First, define the the following terms:

odd function: f(-x) = -f(x)] and domain: all values of x

Proof: Suppose there f(-x) = -f(x) such that x is a negative integer, then f(-x) is a positive number <em>(-(-x) = +x)</em> and -f(x) is a negative number <em>(negative of a positive number is a negative number). </em>Since a positive number cannot equal a negative number, then this is not possible.

Answer: No

3 0
2 years ago
Read 2 more answers
Find the volume of a cone with a base radius of 3 cm and a height of 9 cm
katovenus [111]

The volume of a cone is 84.78 cm                

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

<u>Given</u>:

radius = 3 cm and

height = 9 cm

<u>To Find</u>:

The Volume of a Cone

<u>Formula</u>:

The Formula for the volume of a cone is

V=πr2 *h/3

<u>Solution</u>:

V=πr2 *h/3

π value is 3.14

V= 3.14*(3)^2*9/3

V=3.14*9*3

V= 84.78 cm

Therefore the volume is 84.78 cm.

5 0
2 years ago
"How much do students pay, on average, for textbooks during the first semester in college? From a random sample of 400 students
dezoksy [38]

Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

Step-by-step explanation:

Since we have given that

Sample size = 400

Mean = $357.75

Standard deviation = $37.89

At 95% confidence level, z = 1.96

We first find the margin of error.

Margin of error is given by

z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{37.89}{\sqrt{400}}\\\\=3.71

95% confidence interval would be

\bar{x}\pm \text{margin of error}\\\\=357.75\pm 3.71\\\\=(357.75-3.71,357.75+3.71)\\\\=(354.04,361.46)

Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

7 0
2 years ago
The equation that represents the canned goods order is 24x + 64y = 384, where x = number of minutes spent producing fruit cans,
Lubov Fominskaja [6]
So wee need to find x

4 0
2 years ago
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Shawna and her best friend Keisha go shopping. The function p(t) = 3x4 + 2x3 − 4x2 + 21 represents how much money each girl spen
Komok [63]

Shawna and her best friend Keisha together spend $ 138

<h3><u>Solution:</u></h3>

Given that, Shawna and her best friend Keisha go shopping.

The function given for money each girl spent based on the number of hours they were shopping is:

p(t)=3 x^{4}+2 x^{3}-4 x^{2}+21

<em><u>Find the amount of money that each girl spent</u></em>

For t = 2 hours

\begin{array}{l}{\mathrm{p}(2)=3(2)^{4}+2(2)^{3}-4(2)^{2}+21} \\\\ {\mathrm{p}(2)=3 \times 16+2 \times 8-4 \times 4+21} \\\\ {\mathrm{p}(2)=48+16-16+21} \\\\ {\mathrm{p}(2)=69}\end{array}

<em><u>Find the amount of money that they spend together</u></em>

Multiply by 2 the amount of money that each girl spent

2 \times 69 = 138

3 0
2 years ago
Read 2 more answers
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