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
ser-zykov [4K]
3 years ago
12

Please help with function notation question (see attached file)

Mathematics
1 answer:
adell [148]3 years ago
3 0

Answer:

3.5 and 5

Step-by-step explanation:

Given

f(x) = \frac{x+5}{x}

To evaluate f(2) substitute x = 2 into f(x)

f(2) = \frac{2+5}{2} = \frac{7}{2} = 3.5

Similarly for f^{-1}(x)

f^{-1} (2 ) = \frac{5}{2-1} = 5

You might be interested in
Lanas family is planning a rectangular garden. They make a scale diagram of the garden using a scale of 1 in. to 0.5 meter. If t
d1i1m1o1n [39]
The perimeter is everything added up, since its not a square then you add not multiply. 24+24=48 and 16+16=32, add 32 and 48 and get 80.                                                                                                                                                                                                                                                  Answer:80
8 0
3 years ago
A recipe needs 5/4 of a cup of sugar you are going to triple the recipe how much sugar do you need?
Schach [20]
The answer is 16/2 cups of sugar
8 0
3 years ago
Read 2 more answers
The function f(x) = (x - 4)(x - 2) is shown.
agasfer [191]

Answer:

all real numbers greater than or equal to -1

Step-by-step explanation:

In order to solve this problem we need to know the vertex and the direction its pointing.

First we expand,

x^2-6x+8

To find the x value of the vertex we use this formula (-b/2a).

-(-6)/2(1) = 3

Now we plug 3 in the equation to get the y value,

(3)^2 - 6(3) + 8 = 9 - 18 + 8 = -1

The vertex is (3,-1)

We know the graph points up because x^2 is positive

The vertex is the lowest point, so we now know that -1 is the starting range and if the graph is pointing up, that means all values greater than -1.

This leads to our answer all real numbers greater than or equal to -1.

6 0
3 years ago
What do you think it means when the change is positive? Negative? in a mathematical way​
SashulF [63]

Answer:

A number is positive if it is greater than or equal to zero. A number is negative if it is less than or equal to zero.

8 0
2 years ago
Read 2 more answers
Which type of structure is used to determine which of two sets of instructions to execute?
Thepotemich [5.8K]
The CEO determine which two sets execute
3 0
3 years ago
Other questions:
  • Grade 8 Math 8
    13·1 answer
  • A baker wanted to enter the apple pie
    13·1 answer
  • How do I substitute this?
    12·1 answer
  • Which statements are true for irrational numbers written in decimal form? A. Irrational numbers are nonterminating. B. Irrationa
    12·2 answers
  • Write a proportion to find how many points x
    10·1 answer
  • I asked, and someone made a response, not a math response.
    13·1 answer
  • How many seconds are in a whole week?!
    11·1 answer
  • Lavasha and Keisha travel separately to their grandmother’s house, 114 miles away. Keisha leaves from the same place 30 minutes
    12·1 answer
  • Is this right or not because I’m doubting it
    14·1 answer
  • Help please can someone solve this<br>a = 165/360 × pi10^2​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!