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Mekhanik [1.2K]
3 years ago
14

What’s the domain, range, and is it a function?

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0
The Domain is the set of x coordinates in a relation; the independent variable

The Range is the set of y coordinates in a relation; the dependent variable

Function- a relation is a function of each number in the domain appears only once

*Its Only A Function If The Numbers In The Domain DO NOT Repeat*
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Please help as soon as possible 50 points
Morgarella [4.7K]

Answer:

the answer is d. 4x²+x-6

Step-by-step explanation:

In order to combine the fractions, they need to have the same denominator.

So, multiply each of their numerators by the denominator they need to be equivalent.

This would look like this:

3x/x+3 --> 3x(x)/x(x+3)        ---simplify this as--> 3x²/x(x+3)

x-2/x  --> (x-2)(x+3)/x(x+3)  ---simplify this as --> x²+x - 6/x(x+3)

3x                    3x(x)                                     x-2                   (x-2)(x+3)

-----      --->        -----                 and             --------   --->           ---------

x+3                   x(x+3)                                    x                        x(x+3)

now that both fractions have the same denominator, we can add their numerators.

3x² + x²+x-6 = 4x²+x -6

This should now look like this:

4x²+x -6

-------------

x(x+3)

8 0
3 years ago
Read 2 more answers
A theatre ticket costs £37 plus a booking fee of 4%.<br>What is the total price of the ticket?​
Studentka2010 [4]

Answer:

£38.48

Step-by-step explanation:

First, we have to find what 4% of 37 is, so our equation is:

37 x 0.04 = 1.48

Then we have to add that 4% to the original cost:

1.48 + 37 = 38.48

So the total price of the theatre ticket is  £38.48

6 0
3 years ago
100 envelopes cost you .70 what would 250 envelopes cost you
kobusy [5.1K]
250/100 = 2.5
2.5*7 = 1.75
$1.75

Hope this helped!
8 0
4 years ago
Read 2 more answers
6. MONEY Len bought a $24.99 pair of pants
tatuchka [14]

Answer:

$2.06 tax

Step-by-step explanation:

$24.99 pants

$27.05 total cost with tax

24.99 + tax = 27.05

tax = 27.05 - 24.99

27.05 - 24.99 = 2.06

7 0
3 years ago
HELP P L E A S E ! !
alex41 [277]

Answer:

A is true but I dont know the rest I am very sorry   .-.

Step-by-step explanation:

I Just added 18 + 12 = 30 + 10 = 40 and that is why A is true

3 0
3 years ago
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