Hi there! :)
Answer:
![\huge\boxed{x = -4, -2}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7Bx%20%3D%20-4%2C%20-2%7D)
x² + 6x + 8 = 0
Factor the equation by finding two numbers that sum up to 6 and multiply into 8:
4 + 2 = 6
4 ×2 = 8
Rewrite in factored form:
(x + 4) (x + 2) = 0
Find the roots using the Zero-Product Property:
x + 4 = 0
x = - 4
x + 2 = 0
x = -2.
Therefore, the roots of this equation are at x = -4 and -2.
Answer:
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Step-by-step explanation:
first what is the question no only x = i didn´t see your computer
Answer:
Systematic Random Sampling
Step-by-step explanation:
Edge 2021
Answer:
P = 499.2 Watt
Step-by-step explanation:
![p = iv \\ p = 4.16 \times 120 \\ p = 499.2 \: watt](https://tex.z-dn.net/?f=p%20%3D%20iv%20%5C%5C%20p%20%3D%204.16%20%5Ctimes%20120%20%5C%5C%20p%20%3D%20499.2%20%5C%3A%20watt)
a) The <em>perimeter</em> function of the rectangle is
.
b) The domain of the <em>perimeter </em>function is
.
<h3>
How to analysis the perimeter formula of a rectangle inside a parabola</h3>
a) The perimeter of a rectangle (
) is the sum of the lengths of its four sides:
(1)
If we know that
and
, then the perimeter of the rectangle is represented by the following formula:
![p = 2\cdot x \cdot (9-x^{2})](https://tex.z-dn.net/?f=p%20%3D%202%5Ccdot%20x%20%5Ccdot%20%289-x%5E%7B2%7D%29)
![p = 18\cdot x -2\cdot x^{3}](https://tex.z-dn.net/?f=p%20%3D%2018%5Ccdot%20x%20-2%5Ccdot%20x%5E%7B3%7D)
The <em>perimeter</em> function of the rectangle is
. ![\blacksquare](https://tex.z-dn.net/?f=%5Cblacksquare)
b) The domain of the function is the set of values of
associated to the function. After a quick inspection, we find that the domain of the <em>perimeter </em>function is
. ![\blacksquare](https://tex.z-dn.net/?f=%5Cblacksquare)
<h3>Remark</h3>
The statement is incomplete and poorly formatted. The correct form is described below:
<em>As shown at the right, rectangle ABCD has vertices C and D on the x-axis and vertices A and B on the part of the parabola </em>
<em> that is above the x-axis. a) Express the perimeter </em>
<em> of the rectangle as a function of the x-coordinate of A. b) What is the domain of the perimeter function?</em>
To learn more on rectangles, we kindly invite to check this verified question: brainly.com/question/10046743