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
Leona [35]
3 years ago
11

Select each pair of functions that are inverses of each other

Mathematics
2 answers:
svlad2 [7]3 years ago
6 0

Answer:

The first two choices only: A and B.

Step-by-step explanation:

The inverses are the ones with one relation having point (x,y) and the other relation having point (y,x). This most obvious when looking at points on a table or a list of points.

So the first pair are inverses because per point (x,y) on the first list you have (y,x) on the second list.

Examples:

1st list contains (-5,-9) while second list contains (-9,-5).

1st list contains (3,7) while the second list contains (7,3).

As long as (a,b) is in the first list and (b,a) is in the second or vice versa, then the pair of relations are inverses. So the first choice contains inverses.

Now lets talk about the pair of functions given in function notation.

Let's start with the first.

y=x+7

Extend the first idea more. Just swap x and y and then see after solving for y if what it equals is what g equals then f and g are inverses in the second choice.

x=y+7

Subtract 7 on both sides:

x-7=y

y=x-7

This is what g equals so the second choice is an answer.

The last choice does not contain a pair of inverses. Example: (2,3) is in the first list but (3,2) is not in the second.

Luba_88 [7]3 years ago
3 0

Answer:

A and B

Step-by-step explanation:

got it right on e2020

You might be interested in
Isolate the variable x. - 5x < 10
Neporo4naja [7]

Answer:

x > - 2

x ∈ ( - 2 ; + oo)

Step-by-step explanation:

- 5x < 10 | *(-)

5x > - 10 | : 2

x > - 2

x ∈ ( - 2 ; + oo)

8 0
3 years ago
Do the ratios 8/ 5 and 11 /6 form a proportion?
nordsb [41]

Answer:

no they don't

hope this helps

have a good day :)

Step-by-step explanation:

4 0
3 years ago
If f(x) -V7-3, complete the following statement (round your answer
nikklg [1K]

Answer:

- 1.67

Step-by-step explanation:

f(x) = \frac{3}{7+2} - \sqrt{7-3}

    =  \frac{3}{9} - \sqrt{4}

    = \frac{1}{3} - 2

    = - 1 \frac{2}{3}

    = -1.6666666

    = -1.67

5 0
2 years ago
Jim sells hot dogs for $2.95 each and steak sandwiches for $9.95 each out of his food cart. During a busy outdoor festival, he s
Afina-wow [57]

Step-by-step explanation:

x + y = 985

2.95x + 9.95y = 7343.75

-2.95x - 2.95y = -2905.75

7y = 4438

y= 634 steak sandwiches

x + 634 = 985

x = 351 hot dogs

7 0
3 years ago
Read 2 more answers
From the diagram below, if the sides AD = 3 and DC = 27, and BD = X + 3, find x.
Colt1911 [192]

Given:

• AD = 3

,

• DC = 27

,

• BD = x + 3

Let's solve for x.

To solve for x, apply the altitude formula:

\frac{AD}{BD}=\frac{BD}{DC}

Where BD is the altitude.

Cross multiply:

BD^2=AD*DC

Plug in the values and solve for x:

\begin{gathered} (x+3)^2=3*27 \\  \\ (x+3)^2=81 \end{gathered}

Take the square root of both sides:

\begin{gathered} \sqrt{(x+3)^2}=\sqrt{81} \\  \\ x+3=9 \\  \\ \text{ Subtract 3 from both sides:} \\ x+3-3=9-3 \\  \\ x=6 \end{gathered}

Therefore, the value of x is 6 .

ANSWER:

d. 6

4 0
1 year ago
Other questions:
  • What does (6+2)to the 2nd power-4x3 equal
    13·2 answers
  • F(x) = х - 3<br> f(x) =x -2<br> f(x) = x+5<br> 9<br> ОА<br> ов<br> f(x) =х+ 3<br> f(x) = -2x – 3
    13·1 answer
  • Help asap??!!?!?!.....................................!
    6·1 answer
  • 15-2(7 - x) = 7<br>(Multi- step equations)<br>show steps please:)&lt;4​
    5·2 answers
  • What is the equation of the circle shown below?​
    15·1 answer
  • Tahmar knows the formula for simple interest is I = Prt, where I represents the simple interest on an amount of money, P, for t
    11·1 answer
  • There are 64 candies in a 16 ounce<br> bag. How many ounces do 3 candies<br> weigh?
    14·2 answers
  • Help me plz. i would appreciate it.
    7·2 answers
  • Look at the system of equations below.
    13·1 answer
  • For the following inequality, find a solution for the variable. Show all of your work and use complete sentences to explain the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!