3 years ago

What is the domain of the function f(x) = x^2-9/x-3 in set notation and in interval notation?

Mathematics

1 answer:

nataly862011 [7]3 years ago

8 0

Answer:

the domain is f[x]=x2x5ty57ju68jujokm000oikukoii

You might be interested in

Sophia's school took a field trip. a total of 21 vehicles were needed for the trip. some students took the bus, and some student

Liono4ka [1.6K]

Let x be the number of buses, and y the number of cars.
$\left \{ {{x+y=21} \atop {30x+4y=318}} \right.$
We can solve for y in the first equation to get:
$y=21-x$
Now we can replace 21-x in our second equation, and solve for x:
$30x+4(21-x)=318$
$30x+84-4x=318$
$26x=234$
$x= \frac{234}{26}$
$x=9$

We can conclude that 9 buses were needed for the trip.

4 0

4 years ago

A trampoline has an area of 49pi square feet. What is the diameter of<br> the trampoline?

Alex17521 [72]

Answer:

The diameter is 14π

Step-by-step explanation:

We know the area of a circle is πr^2

let 49π=πr^2

Cancel the π's, and you get 49=r^2

Take the square root and you get r=7

The diameter of a circle is 2πr.

2π(7)=14π.

8 0

3 years ago

How to write 246,305 in expanded notation

gregori [183]

Answer:

200 000 + 40 000 + 6 000 + 300 + 5

3 0

3 years ago

Read 2 more answers

Is the statement (3 to the 5th power) to the 4th power = (3 to the 4th power) to the 5th power true? pls explain your reasoning

dezoksy [38]

Answer:

Step-by-step explanation:

It is due because you multiply the powers

5*4=20 4*5 =20

the result in both cases is 3 to the 20th power

4 0

3 years ago

PLEASE HELP ME IM BEGGING YOU!!!<br> FIND THE VALUE OF X

Korvikt [17]

84 I'm sure it's that I did it before

8 0

3 years ago

Read 2 more answers