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
Mama L [17]
3 years ago
8

Please help me with a explanation

Mathematics
1 answer:
blagie [28]3 years ago
3 0

Answer:

x = -3   or   x = 3

Step-by-step explanation:

Subtract 9 from both sides.

x^2 - 9 = 0

Factor the left side. There is no common factor of the terms. It is a binomial which is the difference of two squares, so it factors into the product of a sum and a difference.

(x + 3)(x - 3) = 0

Set each factor equal to zero.

x + 3 = 0   or   x - 3 = 0

Solve each equation.

x = -3   or   x = 3

You might be interested in
Please help me!!!!!!!!!!
kirill [66]
I think the  answer may be D. You can graph the points and draw  a line through the points to see what other points are intersected by the line. 
5 0
3 years ago
What is 1+1 ?<br><br> Plz help!!! Hurry plz, I need to know.
DaniilM [7]

Answer:

hmmm...? im gonna guess 2

Step-by-step explanation:

i finger plus another finger gives me......ahhhhh ik the answer its 2

4 0
3 years ago
Read 2 more answers
Solve for the variable in the following proportion. 5/25 = m/125
Arisa [49]
The solution is 5*125/25 = 25
m=25
7 0
3 years ago
Read 2 more answers
Brainliest! 30 points!
Galina-37 [17]

Answer:

the correct answer is c

Step-by-step explanation:

3 0
3 years ago
Alice wants to put wall-to-wall carpeting in a small room with the floor plan shown.
AURORKA [14]
I found the complete problem. 

If Alice divides it into two trapezoids, the area formula would be: A = [(a+b) / 2] * h 
Trapezoid 1
A = [(7.5 + 15)/2 * 5
A = (22.5/2) * 5 
A = 11.25 * 5 
A = 56.25 sq. ft

Trapezoid 2
A = [(5 + 10)/2 * 7.5
A = (15/2) * 7.5
A = 7.5 * 7.5 
A = 56.25 sq. ft

Total area = 56.25 + 56.25 = 112.50 sq. ft.

3 0
3 years ago
Other questions:
  • Colin received a bonus check for 2,500$. He is going to deposit the money into his bank account that receives 5.5% simple intere
    6·1 answer
  • What is the intesity of an earthquake with a magnitude of 3?
    11·1 answer
  • In its standardized​ form, what properties does the normal distribution​ have?
    6·1 answer
  • Best estimate for 61/7
    12·1 answer
  • Teresa is investigating if grade level has any effect on time spent studying. What is the response variable?
    7·1 answer
  • Could someone please help and explain?
    8·1 answer
  • Need help real quick lol pls
    7·1 answer
  • Use the image below, answer the following questions. Be sure to answer all 3 questions in order.
    11·1 answer
  • Rate the following bank accounts from most to least liquid: CD, savings account, checking account, money market account. a. CD,
    11·2 answers
  • Whats the answer.......
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!