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
lidiya [134]
3 years ago
15

Which functions domain consists of all real numbers except -2?

Mathematics
1 answer:
Eddi Din [679]3 years ago
8 0

Answer:

option (a) f(x)= 1/x+2

Step-by-step explanation:

(a) f(x) = 1/ x+2

To find the restriction for domain , we set the denominator =0  and solve for x

x+2 =0, so x=-2

When x=-2  then denominator becomes 0 that is undefined.

So, domain is all real numbers except -2

(b) f(x)= 2x

In this function, there is no denominator or square root or log function

so there is no restriction for x, hence domain is all real numbers

(c) f(x) = 2x-2

In this function, there is no denominator or square root or log function

so there is no restriction for x, hence domain is all real numbers

f(x) = 1/ sqrt(x+2)

if we have square root in the denominator then we set the denominator >0 and solve for x. because square root of negative values are undefined

x+2>0, x>-2

Hence domain is all real numbers that are greater than -2

You might be interested in
Can someone help me on number 8. I tried to do it, but I can’t seem to find the right answer.
qaws [65]

Check the picture below.

4 0
3 years ago
Kit charges customers an initial fee plus a certain amount per hour to walk their pets. The table below shows the amount of mone
Luda [366]

Answer:

The answer would be 7.5

Step-by-step explanation:

This is due to if there were to be a chart it would start at 15 then continue by 7.5 which would then lead to 1 hour which is 22.5 min additionally other people are not answering this because you did not give all the information such as the chart etc and the answers unlike me i have the toolds and the questions.

8 0
3 years ago
Help asappppp math helo
Lyrx [107]
You are correct it is D 
5 0
3 years ago
Read 2 more answers
Simplify the following expression as a<br> monomial:<br><br> -8a8<br> ———-<br> -2a7
Likurg_2 [28]

Answer:

4a

Step-by-step explanation:

-8 / -2 = 4

a^8/a^7 = a^(8 - 7) = a

Answer: 4a

8 0
2 years ago
Can someone please help me with this? thank u so much ​
MatroZZZ [7]

Step-by-step explanation:

The perimeter of a triangle is calculated by adding all three side lengths together

That means x + 3 + x + 4 + x + 1 = 17 add the like terms

3x + 8 = 17

3x = 9

x = 3

BC = x + 3 ➡ 6

CD = x + 4 ➡ 7

BD = x + 1 ➡ 4

6 0
3 years ago
Read 2 more answers
Other questions:
  • Irrational numbers are _____ integers.
    11·1 answer
  • Write the equation of a line that passes through the points (6,2) and (-4,-3)
    14·1 answer
  • Find the measure of c
    10·1 answer
  • Math question problem​
    9·1 answer
  • I need help thank you
    7·2 answers
  • A triangle has an area equal to:
    8·1 answer
  • Solve for x. PLEASE SHOW WORK AND HELP
    14·1 answer
  • Please answer fast <br> needed as soon as possible
    14·1 answer
  • PLEASE HELP Reduce the fraction to lowest terms. K+7/4k+28
    12·1 answer
  • Is (x − 4) a factor of f(x) = x3 − 2x2 + 5x + 1? Use either the remainder theorem or the factor theorem to explain your reasonin
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!