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
Gre4nikov [31]
3 years ago
8

I'm doing a practice, and I'm really confused by this question. Help would really be appreciated!!! **100 PTS!**

Mathematics
2 answers:
Stels [109]3 years ago
6 0

Great Question!

The problem we have at hand is known to be a function, which maps elements from one set of objects, ( the domain ) onto another, the range. If we were to consider an ordered pair, say ( x, y ), then the function would map x onto y. The inverse function is simply the reverse. Take the ordered pair (-4,0). Function g would map - 4 onto 0, such that g( - 4 ) = 0. Therefore, the inverse function would map 0 onto - 4, resulting in g^{-1}( 0 ) = - 4. And there you have it! Our first part is answered!

____

This second bit here is interesting. Let y = h( x ) -

y = 4x + 3 - Switch x and y,

x = 4y + 3 - And now solve this equation for y,

x - 4y = 3,\\- 4y = - x + 3,\\y = 1 / 4x - 3 / 4

As you can see, we have taken the inverse of h( x ). As y = h( x ), we can thus conclude the following -

h^{-1}(x) = 1 / 4x - 3 / 4

____

The composition (h^-1 o h)(-5) is, in other words, h^-1(h(-5)). We can therefore calculate h(-5) and then take it's inverse -

h(-5) = 4(-5) + 3,\\h(-5) = - 20 + 3,\\h(-5) = - 17

Now we can take it's inverse -

h^{-1}(-17) = 1 / 4( - 17 ) - 3 / 4,\\- 17 / 4 - 3 / 4,\\= - 5!

Our solution for this last bit is - 5. And, if you don't feel like reading through this entire explanation just take a look at the " summed up " answer below,

g^{-1}( 0 ) = - 4,\\\\h^{-1}( x ) = 1 / 4x - 3 / 4,\\\\( h * h^{-1} )( - 5 ) = - 5  I do hope that helps you!

zaharov [31]3 years ago
4 0

Answer:

Or 50

Step-by-step explanation:

You might be interested in
What is the factorization of the trinomial below?x3 - 12x2 + 35x?
Fed [463]
X³ - 12x² + 35x

x(x² - 12x + 35)

x(x-5)(x-7)
4 0
3 years ago
Read 2 more answers
A graph relates the amount of gas in the tank of your car to the distance you can drive.
umka2103 [35]
The car runs out of gas, resulting in no more displacement taking place.
6 0
3 years ago
A 12 pack of soda is roughly $2.52. What is the cost per one can of soda?
Natalka [10]

Answer:

$2.52/12= $.21

the cost of one can of soda is $.21

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Based on the above chart, which industry's average annual rate of change is projected to decrease the most in the 2006-2016 peri
RUDIKE [14]

Answer:

Step-by-step explanation:

b

4 0
3 years ago
Read 2 more answers
A line passes through (-7,-5) and (-5,4). Write an equation for the line in point-slope form. Rewrite the equation in standard f
rewona [7]
The equation:
y - y 1 =  ( y2 - y1 ) / ( x2- x1) * ( x - x1 )
y - ( - 5 ) = ( 4 + 5 ) / ( - 5 + 7 ) * ( x - ( - 7 ) )
y + 5 = 9/2 ( x + 7 )
y + 5 = 9/2 x + 63 /2  / * 2
2 y + 10 = 9 x + 63
- 9 x + 2 x = 53
Answer:
C ) y + 5 = 9/2 ( x + 7 ) ;   - 9 x + 2 y = 53
4 0
3 years ago
Read 2 more answers
Other questions:
  • zach is 23 years old. Zach's age is 3 years older than twice Maya's age. Let m represent Maya's age. What equation can be used t
    9·1 answer
  • Ivan biked 1 2/3 hours on monday 2 1/3 hours on tuesday and 2 2/3 hours on wednesday how many hours ivan spent biking
    7·1 answer
  • Jo sold 132 mugs, One quarter of the mugs were small , the rest were large . Jo made a profit of £2.45 on each small mug. She ma
    9·1 answer
  • Show all your work and how u know its the right answer <br> 6x -3 =21
    14·2 answers
  • The Wilson’s drove 324 miles in 6hours if they drove the same number of miles each hour,how many miles did they drive in 1hour
    7·1 answer
  • Solve equation for x<br> X2 - 4x + 29 = 0
    7·2 answers
  • The length of a rectangle is four times the width. If the width is represented by x, then write an algebraic expression that des
    7·1 answer
  • Match each quadratic function with its respective graph
    13·2 answers
  • A right angle is formed by two rays
    15·1 answer
  • How would I solve this​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!