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nikklg [1K]
3 years ago
9

If FX equals 2 x 2 + 1 what is f x when x equals 3

Mathematics
1 answer:
arlik [135]3 years ago
5 0
F(3)=2(3)^2=1 would be 19 

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Solve the proportion equation. X 10 45 9 = X = (Type a whole number or a decimal.) ​
Ann [662]

Answer: x=7.5

Step-by-step explanation:

8 0
1 year ago
Read 2 more answers
Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n?
exis [7]

The solution set of the equation is all reals ⇒ 3rd answer

Step-by-step explanation:

The solution set of an function is the set of all vales make the equation true. The equation has:

  • Solution if the left hand side is equal to the right hand side
  • No solution if the left hand side doesn't equal the right hand side

∵ The equation is 18 - 3n + 2 = n + 20 - 4n

- Add the like terms in each side

∴ (18 + 2) - 3n = (n - 4n) + 20

∴ 20 - 3n = -3n + 20

- Add 3n to both sides

∴ 20 = 20

In the equation of one variable, when we solve it if the variable is disappeared from the two sides, and the two sides of the equations are equal, then the variable can be any real numbers, if the two sides are not equal, then the variable couldn't be any value

∵ The the variable n is disappeared

∵ The left hand side = the right hand side

∴ n can be any real number

∴ The solution set of the equation is all real numbers

The solution set of the equation is all reals

Learn more:

You can learn more about the equations in brainly.com/question/11229113

#Learnwithbrainly

8 0
3 years ago
Read 2 more answers
82,321 to the nearest hundred ?
Lyrx [107]
82,300 because you need to round it to the 100 place
6 0
3 years ago
B
kirill [66]

Answer:

B =116°

D = 116°

Step-by-step explanation:

one set of opposite angles of a kite equal

7 0
2 years ago
PLZ HURYY <br>THANK YOUU​
Sonja [21]

y = -19

I started by adding 18 to both sides(inverse operation) then dividing by -2 to isolate the variable. What you do to one side must be done to the other

8 0
2 years ago
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