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Nana76 [90]
3 years ago
12

If f(a) = b, find f^-1(b)

Mathematics
1 answer:
love history [14]3 years ago
3 0

Answer:

f^1(b)= a

Step-by-step explanation:

To find the inverse function of f(b) or f^1(b), you simply switch the varibles.

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Which statements about this system of equations are true? Check all that apply. - x + 6y = 16 8x - 6y = -2 The x-variable will b
frutty [35]

Answer:

The true statements are:

The y-variable will be eliminated when adding the system of equations

There is only one solution to the system of equations is

Step-by-step explanation:

* Lets explain how to solve the problem

- We use the elimination method to solve the system of the

  linear equation

- The solution is one of three cases

# Exactly one solution ⇒ the 2 lines which represented the equations

  intersect each other at one point

# No solution ⇒ the 2 lines which represented the equations are

  parallel to each other

# Infinite solutions ⇒ the two lines are coincide

- In the system of the linear equations of the problem we have two

 linear equations  -x + 6y = 16 and 8x - 6y = -2

- To solve we must to eliminate one of the two variables

∵ The y's in the two equations have the same coefficients and

   different signs

∴ We add the equations to eliminate y

∴ (-x + 8x) + (6y - 6y) = 16 + -2

∴ 7x = 14 ⇒ divide both sides by 7

∴ x = 2

- Substitute the x in any one of the two equations by 2

∴ -2 + 6y = 16 ⇒ add 2 to both sides

∴ 6y = 18 ⇒ divide both sides by 6

∴ y = 3

∴ The solution of the system of the equations is (2 , 3) ⇒ only one

   solution

- Lets check the statements to find the true statements

# The x-variable will be eliminated when adding the system of

   equations is not true

# The y-variable will be eliminated when adding the system of

   equations is true

# The sum of the system of equations is - x + 6y is not true

# There is only one solution to the system of equations is true

6 0
3 years ago
Read 2 more answers
How many dominos are needed to complete the triangle?
solong [7]

Only 3 is needed

Step-by-step explanation:

5 0
2 years ago
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What is a sigma??? pls need help!!
azamat

Answer:

Sigma is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase ∑ is used as an operator for summation. When used at the end of a letter-case word, the final form is used

Step-by-step explanation:

7 0
3 years ago
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I’ll forever be grateful if anyone could help graph these!!!!
jekas [21]

Answer:

Step-by-step explanation:

9. (2, -2) (1,0) (3,0) shade in and connect the points making it look like a 'U'

10. (-3, 1) (-4, -1) (-2,-1) not shaded and connect points making it look like ^

11. (2,-2) (1,-3) (3,-3) (0,-6) (4,-6) not shaded and connect points making it look like ^

12. (3, -1) (2,-2) (4,-2) (1,-5) (5,-5) not shaded and connect points making it look like ^

sorry for not showing the work, giving the points was the easiest way to give you the answers(:

3 0
3 years ago
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A two-digit number is a multiple of 9. Find the number if 1/3 of the number is 3 greater than 1/2 of the reverse number. no file
Mama L [17]

Answer:

63

Step-by-step explanation:

1/3 of 63= 21

and the reverse of 63 is 36

so 1/2 of 36 =18

so 21-18 =3

hence proven

3 0
3 years ago
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