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
bekas [8.4K]
2 years ago
5

How to factor this expression: x^2-9?

Mathematics
1 answer:
Lena [83]2 years ago
7 0

Answer:

(x+3)(x-3)

Step-by-step explanation:

rewrite "9" as 3^2

so it is x^2-3^2

You use the difference of squares: a^2-b^2=(a+b)(a-b)

apply it: (x+3)(x-3)

You might be interested in
The floor of a NYC subway car measures approximately 12 feet. How many cubic feet of space are there in a subway car?
fiasKO [112]

The cubic feet of space that is in the subway car is the volume of the subway car which is 5,502.

<h3>How many cubic feet of space are there in a subway car?</h3>

The shape of a subway car is in the form of a rectangular prism. In order to determine the cubic feet of space, the volume of the car has to be determined. The formula for the volume of a rectangular prism would be used.

Volume = width x height x length

12 x 51 x 8.5 = 5205

Here is the complete question:

The floor of an NYC subway car measures approximately 51 feet by 8.5 feet. The height of the NYC subway car measures approximately 12 feet. How many cubic feet of space are there in a subway car?

To learn more about the volume of a cuboid, please check: brainly.com/question/26406747

5 0
3 years ago
23.96448 to the nearest tenth
Ulleksa [173]
The answer is 24 this needs to be longer so it will send
8 0
3 years ago
Read 2 more answers
Help please thank you
avanturin [10]

Answer:

150*2/3=100

take school size then multiply it by the ratio to get the amount of student who prefer such toothpaste.

Step-by-step explanation:

4 0
2 years ago
I need help with question 42. Can someone help me?
LiRa [457]
The answer is C and brainliest answer please.
5 0
4 years ago
Read 2 more answers
1)y=4<br> 2)y=4x<br> 3)y=4x+4<br> 4)x=4
lina2011 [118]

Answer:

I think number letter shape 14

5 0
3 years ago
Read 2 more answers
Other questions:
  • HELP ASAP PLEASE need help
    9·2 answers
  • The average reading speed of students completing a speed-reading course is 435 words per minute (wpm). If the standard deviation
    9·1 answer
  • What is the value of x , when x = 16 and y = 2?
    13·2 answers
  • Which condition does not prove that two triangles are congruent
    5·1 answer
  • James and Sara participated in a walking program for 7 days. James walked 2 miles every day. Sara walked 2 1 miles every day Whi
    13·1 answer
  • The ratio of boys to girls in a volleyball club was 6: 8. There were 36 boys.
    6·2 answers
  • (4) please try and find the area of a triangle thank you
    5·2 answers
  • M các ma trận vuông cấp hai thỏa mãn
    8·1 answer
  • The regular price of a CN Tower Souvenir was $32, During its sale, The price was reduced down by $24, Find the percent discount
    14·1 answer
  • The writer wants to add a supporting detail toindicate that the story was widely reported. Whichchoice best accomplishes this go
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!