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
miss Akunina [59]
3 years ago
12

Find the difference 7/x^2-3x - 1/x^2-9

Mathematics
1 answer:
Goshia [24]3 years ago
6 0
To solve this problem you must apply the proccedure shown below:

 1. You have the following expression given in the problem above:

 <span>7/x^2-3x - 1/x^2-9
</span>
 2. When you factor the denominator, you obtain:

 <span>7/x(x-3) - 1/(x+3)(x-3)
 

 3. By simplifying the expression, you obtain:

 3(2x+7)/x(x+3)(x-3)
</span> 3(2x+7)/x(x^2-9)

 The answer is: 
 3(2x+7)/x(x^2-9)
You might be interested in
Aidan writes numbers on his ten fingers as 5, 7, 9, 11, 13, 15, 16, 19, 22, 23. What is the probability of picking an even numbe
faltersainse [42]
It would be 2/10, or 1/5, since two out of the 10 numbers are even. 2/10 simplifies to 1/5, since there is 1 for every 5 numbers.

We could turn this into a percentage by dividing 1 by 5, which gives us 0.2. Then we can multiply by 100 to get 20.

So, our probability of choosing an even number is:
2/10
OR
1/5
OR
20%

Hope I could help!
6 0
3 years ago
Read 2 more answers
Fill in each blank for the function f(x) = 3x - 6.
gayaneshka [121]

Answer:

IM SLOWWWWWWWWWWWWWWWWWWWWWw

Step-by-step explanation:

6 0
3 years ago
There are over 2700 species of snakes in the world over 600 are venomous Express the fraction of species that are not venomous a
Andre45 [30]
You do 600 divided by 2700 and you end up with 22/100 or 0.22 as a decimal. So if 0.22 or 22/100 are venimous then 78/100 or 0.78 are non venimous. I understand its a bit confusing and i can simplify it for you but still I hope this helps :)
6 0
3 years ago
Elliot is 2 times as old as Tanya. 10 years ago, Elliot was 4 times as old as Tanya​. How old is Elliot now?
Serggg [28]

Answer:

Step-by-step explanation:

To solve this, we are going to make an age table:

                       Age Now                 Age 10 years ago

Tanya

Elliot

Filling the in the Age Now column comes from the first sentence. If Elliot is 2 times Tanya's age and we don't know Tanya's age, then Tanya's age is x and Elliot's age is 2x:

            Age Now                Age 10 years ago

Tanya         x

Elliot         2x

Filling in the Age 10 years ago column simply requires that we take their ages in the Age Now column and subtract 10 from each age:

         Age Now                Age 10 years ago

Tanya     x                              x - 10

Elliot      2x                           2x - 10

Since the question is How old is Elliot now based on the fact that 10 years ago....blah, blah, blah, we are using the ages in the 10 years ago column to write our equation. It says:

10 years ago, Elliot was 4 times as old as Tanya. Translated into mathspeak:

2x - 10 = 4(x - 10) and

2x - 10 = 4x - 40 and

-2x = -30 so

x = 15. That means that Elliot is 30 and Tanya is 15

4 0
3 years ago
Lee watches tv 3hours per day. Lee tv consumes 200 watts when on. Electricity cost 12 cents 1 kilowatt-hour how much does Lee's
Alik [6]

Answer: $2.16

Lee watches TV 3 hours per day and TV consumes 200 watts.

Cost of electricity = 12 cents/(1-kilowatt-hour)

200w×3 hours

600 watt-hours

1000 watt-hours=1kwh

1 watt-hours= 1/1000 kwh

600 watt-hours 600/1000=0.6 kwh

0.6×12=7.2cents

1 day=7.2 cents

30 days

7.2×30

216 cents

$2.16

3 0
3 years ago
Read 2 more answers
Other questions:
  • Let x represent any year. Write an Inequality inequality in terms of X in 453 that is true only for values of X that represent y
    8·2 answers
  • Quotient of 296.16 ÷ 2.4
    9·1 answer
  • What is 8(c-9)=6(2c-12)-4c? Solve for c. Please show your work.
    15·1 answer
  • If Carissa leaves 20% tip and her bill is $32.18 what tip did she leave?
    13·2 answers
  • Segment EF is a mid segment of triangle ABC. If EF = 15 cm, what is the measure of segment BC?
    12·1 answer
  • 1000 times 100 in exponent
    14·1 answer
  • If I have 15 feet of ribbon and I want to wrap gifts that each use 1/3 of a foot of ribbon per gift, how many gifts can I wrap?
    8·1 answer
  • Scott's company makes solid balls out of scrap metal for various industrial uses. For one project, he must make copper balls tha
    11·1 answer
  • Help me please please please
    7·1 answer
  • 4/5-1/2 help ASAP NEED THIS ANSWER FOR TEST
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!