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Reil [10]
2 years ago
10

X²=9 determine if x belongs to Q or belongs to Q dash​

Mathematics
1 answer:
Elis [28]2 years ago
4 0

x = 3 is the answer can you pls add me brainliest answer

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I need a answer asap Please!!
Ganezh [65]

Answer:

The ordered pairs (3 , 6) , (5 , 10) show a proportional relationship ⇒ last answer

Step-by-step explanation:

* Lets explain how to sole the problem

- Proportional relationship describes a simple relation between

 two variables

- In direct proportion if one variable increases, then the other variable

 increases and if one variable decreases, then the other variable

 decreases

- In inverse proportion if one variable increases, then the other variable

 decreases and if one variable decreases, then the other variable

 increases

- The ratio between the two variables is always constant

- Ex: If x and y are in direct proportion, then x = ky, where k

 is constant

 If x and y in inverse proportion, then x = k/y, where k is constant

* Lets solve the problem

# Last table

∵ x = 3 and y = 6

∴ x/y = 3/6 = 1/2

∵ x = 5 and y = 10

∴ x/y = 5/10 = 1/2

∵ 1/2 is constant

∵ x/y = constant

∴ x and y are proportion

* The ordered pairs (3 , 6) , (5 , 10) show a proportional relationship

7 0
3 years ago
Solve x2 + 10x = 24 by completing the square. Which is the solution set of the equation? {–12, 2} {–2, 12}
guajiro [1.7K]

Answer: I could be wrong so don't get your hopes up but I believe the solution set would be {-2,12}

Step-by-step explanation:

3 0
3 years ago
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Steven made $25 mowing lawns. With this money, Steven wants to save $10 and buy a new t-shirt which costs $10.81. With the rest
strojnjashka [21]

he can buy 1.52 packages.

5 0
3 years ago
Solve for the value of n<br> (9n)<br> (8n+8)
lawyer [7]

Answer:

n(9n)(8n+8) = 72x^3+72x^2

6 0
3 years ago
X÷2=6<br><br>need help<br><br>Alguem me ajuda<br><br>necesito ayuda​
Ganezh [65]
Divide both sides by 2

X=3
8 0
3 years ago
Read 2 more answers
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