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vazorg [7]
2 years ago
9

Solve the inequality 3x-9<12

Mathematics
2 answers:
Vesnalui [34]2 years ago
3 0

Answer:

x=7

Step-by-step explanation:

Have a great day :)

Helga [31]2 years ago
3 0

Answer:

x < 7

Step-by-step explanation:

3x - 9 < 12     add 9 for both sides.

3x < 21      divide both sides by 3.

x < 7.

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What value or values of x satisfy 2x + 5.31 = 4.2?
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Answer:  x can equal -3.2 or -7.4.

Step-by-step explanation:

The correct expression is:

2|x+5.3|=4.2

So, we have an absolute value equation, where it can be positive or negative:

  • Positive

2 (x+5.3)=4.2

2x+10.6 =4.2

2x=4.2-10.6

2x = -6.4

x= -6.4/2

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2[-(x+5.3)]=4.2

-2x-10.6 =4.2

-2x= 4.2+10.6

-2x= 14.8

x= 14.8/-2

x= -7.4

x can equal -3.2 or -7.4.

Feel free to ask for more if needed or if you did not understand something.  

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Which represents the inverse of the function f(x)=4x?
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Step-by-step explanation:

Suppose h is the inverse of f then

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