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vodomira [7]
3 years ago
13

4(2x + 4) = 10x + 13 - 2x + 3. Solve for x

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
3 0

Answer:

x is any Real number

Step-by-step explanation:

We first apply distributive property on the left to get rid of the grouping symbol, and then combining the like terms (linear terms on one side and numerical terms on the other side of the equation):

8x+16=10x+13-2x+3\\16-13-3=10x-2x-8x\\0=0

This equation results on a TRUE equality Zero = Zero, which means that any value we use for "x" in the original expression will always render an equality.

Therefore x is any Real number.

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If <img src="https://tex.z-dn.net/?f=f%28x%29%3D%20%5Cfrac%7B1%7D%7Bx-2%7D%20" id="TexFormula1" title="f(x)= \frac{1}{x-2} " alt
Darina [25.2K]
I think, the answer will be -7

We have:
f(x)=1/(x-2)
g(x)
Then:
(fg)(x)=[1/(x-2)](g(x))=g(x)/(x-2)
Now; we calculate: (fg)`(x)
Remember: (u/v)=(u`v-vu´)/v²
Therefore:

(fg)´(x)=[g´(x)*(x-2) - 1*g(x)]/ (x-2)²
We know that:
g´(1)=-1
(fg)´(1)=6
Therefore:
6=[-1*(1-2)-g(1)]/(1-2)²
6=[1-g(1)]/1
6=1-g(1)
-g(1)=6-1
g(1)=-5

Answer: B. -5
4 0
4 years ago
Which equation could be used to find the length of the hypotenuse?
e-lub [12.9K]

Answer:

A

Step-by-step explanation:

Pythagorean Theorem states that a^2 + b^2 = c^2. AC is a, BC is b, AB is c 

3 0
3 years ago
Read 2 more answers
2(3x+3)=3(2x+2) can someone please help meee !
Mademuasel [1]

2(3x+3)=3(2x+2)

multiply the first bracket by 2

(2)(3x)=6x

(2)(3)=6

multiply the second bracket by 3

(3)(2x)=6x

(3)(2)=6

6x+6=6x+6

move 6x to the left side

sign changes from +6x to -6x

6x-6x+6=6x-6x+6

0+6=0+6

6=6

Answer:

all real numbers

6 0
4 years ago
In the diagram, `bar(AC)` is a diameter of the circle with center O. If m`/_ACB` = 50°, what is m`/_BAC`?
Whitepunk [10]

<u>Answer</u>

2. 40


<u>Explanation</u>

The angle subtended by the diameter to the circumference is equal to 90°.

∴ angle ABC = 90°

  Angles in a triangle = 180°

  50 + 90 + x = 180

90 + x = 180

x = 180 - 90

 = 90°


4 0
3 years ago
Read 2 more answers
If you had a score of 60% how many marks out of 150 did he obtain
horrorfan [7]

Answer:

90

Step-by-step explanation:

60/100=x/150

180/300=2x/300

2x=180

x=90

8 0
3 years ago
Read 2 more answers
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