1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vladimir1956 [14]
3 years ago
7

PLEASE HELP 46 POINTS Use composition of functions to determine whether or not f(x) and g(x) are inverses of each other. Show al

l work for full credit.
f(x) = (2/x-6)

g(x) = (6x+2/x)
Mathematics
1 answer:
IRISSAK [1]3 years ago
3 0

Remark

The reason you are not getting many replies to this is an uncertainty about f(x). We do not know if you mean f(x) = 2/(x - 6) or f(x) = (2/x) - 6. We'll try it both ways.

First Way f(x) = 2/(x - 6)

f(x = y = 2/(x - 6)             Interchange x and y

x = 2 / (y - 6)                   Multiply both sides by y - 6

x(y - 6) = 2                      Divide by x

y - 6 = 2/x                       Add 6 to both sides.

y  = 2/x + 6                     Which is close to g(x) but it is not the same thing, even if you use x as a common denominator. That would give you

\dfrac{6x + 2}{x}

Second Way: f(x) = (2/x) - 6

f(x) = y = (2/x) - 6           Interchange x and y

x = (2/y) - 6                    Add 6 to both sides

x + 6 = 2/y                     Multiply  both sides by y

y(x + 6) = 2                    Divide by sides by (x + 6)

y = 2/(x + 6)  

Comment

These do not look anything alike so g(x) and f(x) are not inverses.

         

You might be interested in
JJack, Jill, and Bill each carried a 48-fluid ounce bucket full of water down the hill. By the time they reached the bottom, Jac
Advocard [28]

Answer:

Jill lost 1/3

Bill lost 1/6

and Jack lost 1/4

Make a common denominator -  let's use 12

Jill lost 4/12

Bill lost 2/12

Jack lost 3/12

Add them together = 9/12

reduce by dividing by 3.

total of 3/4 spilt

48 divided into 4 parts then multiplied by 3 of those parts

48 / 4 * 3 = 36

Step-by-step explanation:

3 0
3 years ago
Write the equation of the line that passes through (2, 3) and is parallel to the line 12x – 5y = 2.
Alexeev081 [22]
         12x - 5y = 2
12x - 12x - 5y = -12x + 2
                 -5y = -12x + 2
                  -5          -5
                    y = 2.4x - 0.4
               y - 3 = 2.4(x - 3)
               y - 3 = 2.4(x) - 2.4(3)
               y - 3 = 2.4x - 7.2
                 + 3           + 3
                    y = 2.4x - 4.2
3 0
3 years ago
What whole number best approximates the value of x?
ivanzaharov [21]

The answer is 87

For this problem, the method I used was more of a guess and check because I simply plugged the options into a calculator to see which one would be closest a little bit past 9.3 but not all the way 9.4

the square root of 87 is 9.32 so you would round down while the square root of 88 is 9.38 which would round up

Hope this helps :)

4 0
3 years ago
Simplify this (2x)^{3}
Margaret [11]

Answer:

8x^3

Step-by-step explanation:

(2x)3

=(2x)3

=2x*2x*2x

=8x^3

7 0
2 years ago
A store sells shirts that are either small, medium, or large. The colors are
Alecsey [184]
1/12 is the answer i think
8 0
3 years ago
Other questions:
  • F(x) = 3x; find f(7)
    9·1 answer
  • A list of numbers in a specific order
    12·1 answer
  • Three coins are tossed. What is the probability that two land on heads?
    8·1 answer
  • A stack of boards is in the storage shed. Each board is 2-1/5 inches high and there are 21 boards. How many inches high is the s
    8·2 answers
  • Deniz had a full gallon of milk. She poured out 4 cups of milk. There are 16 cups in 1 gallon. About what percent of the origina
    9·1 answer
  • sam is buying t-shirts for 8.00 each and jeans for 48.00 each. If sam buys 5 t--shirts and wants t spend no more than 290 on t-s
    12·1 answer
  • If Jaime wants to find 60% of 320, which table should he use?
    14·2 answers
  • A tree on a hillside casts a shadow 215 feet down the hill. If the angle of inclination of the hillside is 22 degrees to the hor
    12·1 answer
  • What is 1.3 repeating as a fraction
    7·2 answers
  • If we add two equations in the original system, we have 6x+7y=32. Explain why the same (x,y) pair is also a solution to the equa
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!