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Anvisha [2.4K]
4 years ago
9

Which relation is a function?

Mathematics
2 answers:
svetoff [14.1K]4 years ago
5 0

Answer:

(-2,2),(-7,7),(-1,1),(-8,8) this relation is a function

grin007 [14]4 years ago
3 0
(-2,2),(-7,7),(-1,1),(-8,8) this relation is a function

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2x(x+4)+7+=(x+8)+ 2x(x+1)+12=
Katena32 [7]

Answer:

x=2.600

Step-by-step explanation:

2x(x+4)+7+=(x+8)+ 2x(x+1)+12

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

  ->        2*x*(x+4)+7+-((x+8)+2*x*(x+1)+12)=0

-> ((2x•(x+4))+7)-(((x+8)+2x•(x+1))+12)  = 0

->  (2x • (x + 4) +  7) -  (2x2 + 3x + 20)  = 0

->  5x - 13  = 0

-> Add  13  to both sides of the equation :  

                     5x = 13

Divide both sides of the equation by 5:

                    x = 13/5 = 2.600

Please mark as brainliest

8 0
3 years ago
Explain how to write and evaluate an algebraic expression.
BabaBlast [244]
So you would start with 40/n because quotient means division and then it would be (40/n) - 13  (40 divided by n then minus 13) because the answer is thirteen less than the quotient of those numbers. since it wants you to evaluate for n=2 you would do 40/2 which is 20 then subtract 13 which is 7.

So write the expression as (40/n) -13 and when you evaluate just stick the 2 where the n is for (40/2) - 13
                                20 - 13
                                   = 7 
8 0
4 years ago
Read 2 more answers
SAVINGS ACCOUNT Demetrius deposits $120 into his account. One week later, he withdraws $36. Write an addition expression to repr
LenKa [72]

Answer:

+$120 - $36

Higher by $84

Step-by-step explanation:

Addition expression is an equation without the equals to sign

$120 - $36

When the first expression was made, the account was higher by $120

After the second transaction, the account would be higher by $120 - $36 = $84

6 0
4 years ago
I need this really quick please.
Anestetic [448]
The correct answer is 7x-8
7 0
3 years ago
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jaylen is making biscuits using the recipe. How many. cups of flour will he need to make 30 biscuits ? pls help
valentina_108 [34]
30*2=60
so 60 cups of flour he will need
5 0
4 years ago
Read 2 more answers
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