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Fynjy0 [20]
2 years ago
12

PLS HELP ASAP PLS PLS PLS

Mathematics
2 answers:
Amanda [17]2 years ago
8 0

0=0

Step-by-step explanation:

4(×+3)=4x+12

4x+12=4x+12

Subtract 12 from both sides of the equation

4x+12-12=4x+12-12

simplify

4x=4x

Subtract 4x from both sides of the equation

4x-4x= 4x-4x

Simplify and combine like terms

0=0

GenaCL600 [577]2 years ago
3 0

Answer:

You can use any real number for x and make the equation true.

Step-by-step explanation:

A system of linear equations occurs when there are (usually) two equations of a line in which same solutions are sought.

A system of linear equations can be in three states: it can have one solution, it can have no solution, or it can have infinite solutions.

A SoLE (system of linear equations) with one solution is probably the most famous one. This means that the lines share an (x,y) coordinate point. When a system of equations with one solution is graphed, they cross at the point.

A SoLE with no solution means that the lines do not share an (x,y) coordinate. When graphed, they do not touch, ever. They can also be considered parallel to one another.

A SoLE with infinite solutions means that the lines always cross at every (x,y) coordinate they emcompass. When graphed, they are literally the same line.

<u>In this case of 4(x+3) = 4x + 12, they are a SoLE with infinite solutions. This is because if I use the distributive property on 4(x+3), the equation then becomes:</u>

4x + 12 = 4x + 12

<u>They are the same thing.</u>

<u>So, if I input an x value, both sides of the equation will always equal each other.</u>

<u>For example, say that I subsitute 0 for x:</u>

4(0 + 3) = 4(0) + 12

4(3) = 12

12 = 12

<u>They equal each other as expected.</u>

<u>Let's take a weirder number to solidify my point, the constant </u><em><u>e</u></em><u>:</u>

4(<em>e</em> + 3) = 4<em>e</em> + 12

4<em>e </em>+ 12 = 4<em>e</em> + 12

<u>Let's even take 1,000,000 as an example:</u>

4(1,000,000 + 3) = 4(1,000,000) + 12

4(1,000,003) = 4,000,000 + 12

4,000,012 = 4,000,012

<u>So yes, this goes to show how religious these SoLE with infinite solutions can be.</u>

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<span>5-7(-4q+5)
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4 0
3 years ago
Use the graph of the function f to determine the given limit. <br> Picture below
Oduvanchick [21]

Answer:

<u>Option: a</u> is correct.

Limit of the function at x=2 is: 2

Step-by-step explanation:

Clearly by looking at the graph of the function we could observe that the function f(x) is defined as:

f(x)=  -x+4   when x≠4

and    8 when x=2

since we could see that the function f(x) is a line segment that passes through the point (4,0) and (0,4).

and the equation of line passing through two points (a,b) and (c,d) is given by:

y-b=\dfrac{d-b}{c-a}\times (x-a)

Here a,b)=(4,0) and (c,d)=(0,4)

Hence,

the equation of line is:

y-0=\dfrac{4-0}{0-4}\times (x-4)\\\\y=\dfrac{4}{-4}\tmes (x-4)\\\\y=-1(x-4)\\\\y=-x+4

Now the left hand limit of the function at x=2 is:

\lim_{h \to 0} f(2-h)\\\\= \lim_{h \to 0} -(2-h)+4\\ \\=\lim_{h \to 0} -2+h+4\\\\=\lim_{h \to 0}2+h\\\\=2

Similarly the right hand limit of the function at x=2 is:

\lim_{h \to 0} f(2+h)\\\\= \lim_{h \to 0} -(2+h)+4\\ \\=\lim_{h \to 0} -2-h+4\\\\=\lim_{h \to 0}2-h\\\\=2

Hence, the limit of the function at x=2 is:

2

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f(x) = (x-2)²-9
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