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Pani-rosa [81]
3 years ago
15

Solve by finding the square roots: 3x2 - 9 = 3

Mathematics
2 answers:
inna [77]3 years ago
7 0
The answer is x = 2
A
Blizzard [7]3 years ago
3 0

Answer:

x= 2 or x= -2

Step-by-step explanation:

3x² -9= 3

+9 on both sides:

3x²= 9 +3

Simplify:

3x²= 12

Divide by 3 on both sides:

x² =4

Square root both sides:

x =  \sqrt{4}

x= 2 or x= -2

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Yogi is 6 years older than Michelle. The sum of their ages is 26. Write a system of linear equations to represent this informati
postnew [5]

Answer:

10 and 16, x+(x+6)=26

Step-by-step explanation:

Michelle has an age we don't know, so we put her age as x.

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subtract 6 from both sides

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divide both sides by 2

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8 0
3 years ago
A submarine traveling 200 meters below the surface of the ocean increases its depth by 45 meters. Adam says that the new locatio
melisa1 [442]

Adam made an error of 400 meters

Explanation:

Since, submarine traveling 200 meters below the surface of the ocean

and when the depth increases by 45 meters then submarine new location is

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https://brainly.in/question/13000874

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