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sergiy2304 [10]
3 years ago
12

Help The inverse of a function is a function. always sometimes never

Mathematics
2 answers:
8_murik_8 [283]3 years ago
6 0

The answer is sometimes

marysya [2.9K]3 years ago
5 0
Sometimes a function:
The inverse function of y=x^2 is y=+/-sqrt(x), because remember the negative square of something is the same as the positive square of it.
y=+/-sqrt(x) fails the Vertical line test.
Inverses are only one to one if the original function is a bijection
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Solve the following 3 × 3 system. Enter the coordinates of the solution below.
defon

9514 1404 393

Answer:

  (x, y, z) = (-1, 0, -3)

Step-by-step explanation:

We notice that the coefficients of z are such that elimination of the z term from the equations is made easy.

Adding equations 1 and 2:

  (2x -3y -2z) +(x +3y +2z) = (4) +(-7)

  3x = -3

  x = -1

Adding equations 2 and 3:

  (x +3y +2z) +(-4x -4y -2z) = (-7) +(10)

  -3x -y = 3

Substituting for x, we get ...

  (-3)(-1) -y = 3

 0 = y . . . . . . . . . . . add y-3 to both sides

Then z can be found from any equation. Substituting for x and y in the second equation gives ...

  -1 +2z = -7

  2z = -6 . . . . . add 1

  z = -3 . . . . . .divide by 2

The solution is (x, y, z) = (-1, 0, -3).

3 0
3 years ago
If a sample mean is 32, which of the following is most likely the range of
Mekhanik [1.2K]

Answer:

Step-by-step explanation:

It is D, I did this quiz once

8 0
2 years ago
Find the ratio of p to S <br><br> 3p=8s
vodomira [7]
3p : 8s
1p : (8/3)s

So for every one 'p' there is (8/3) 's'

Ratio of p to s is 1 : 8/3
8 0
2 years ago
Read 2 more answers
Simplify: (-20)4 ÷ (-20)1 <br> A.(-20)4<br> B. (-20)5<br> C. -201 <br> D.(-20)3
Bezzdna [24]
A. (-20)4
Hope this helped! With love, Eilyssa! :)
3 0
3 years ago
Read 2 more answers
There are 2 green,5 yellow, 6 red,and 7 blue marbles in a bag. Erin picks one marble from the bag without looking. What is the p
Svetach [21]

Answer:

c 35%

Step-by-step explanation:

2 green,5 yellow, 6 red,and 7 blue marbles

2+5+6+7 = 20 marbles

P(blue) = blue marbles / total marbles

             = 7/20

              = 35/100

               =35%

7 0
2 years ago
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