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joja [24]
3 years ago
7

Hi there! Please, please help me on these problems! And show how to do it, thanks!!

Mathematics
1 answer:
yan [13]3 years ago
8 0
1). 8 x 5x - 8 x 3y
     40x - 24y

you have to multiply the eight inside the parentheses 
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Can someone help me with this math homework please!
azamat

It is not necessary that the function decreasing over a given interval always be negative.

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This does not mean that value of f(x) is negative.

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(100 points!!!)
Sergio039 [100]

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this will probably help

Step-by-step explanation:

3 0
2 years ago
Please help :(<br> [math]
sergij07 [2.7K]

Hey!

------------------------------------------------

First Equation:

2x + 3 = -7

2x + 3 - 3 = -7 - 3 (Subtract 7 to both sides)

2x = -10

2x/2 = -10/2 (Divide 2 to both sides)

x = -5

------------------------------------------------

Second Equation:

4.5x - 7 = 20

4.5x + (-7) + 7 = 20 + 7 (Add 7 to both sides)

4.5x = 27

4.5x/4.5 = 27/4.5 (Divide 4.5 to both sides)

x = 6

------------------------------------------------

Third Equation:

-3x + 7 = 28

-3x + 7 - 7 = 28 - 7 (Subtract 7 to both sides)

-3x/-3 = 21/-3 (Divide -3 to both sides)

x = -7

------------------------------------------------

Answers:

2x + 3 = -7 → x = -5

4.5x - 7 = 20 → x = 6

-3x + 7 = 28 → x = -7

------------------------------------------------

Hope This Helped! Good Luck!

8 0
3 years ago
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