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
gogolik [260]
3 years ago
6

How do you do this problem? Solve by factoring or finding square roots. x^2-1=0

Mathematics
2 answers:
sp2606 [1]3 years ago
4 0
X² - 1 = 0
<u>   + 1  + 1</u>
      x² = 1
       x = <u>+</u>1
Serga [27]3 years ago
3 0
<span>use formula^:   a²-b²= (a-b)(a+b)
x²-1=0</span>
x²-1²=0
(x-1)(x+1)=0
x-1=0⇒ x₁=-1
x+1=0 ⇒x₂=1
Answer: x=+-1
You might be interested in
Solve the system of equations
nekit [7.7K]

Answer: x = 3 and y = 1

Step-by-step explanation:

y = - x + 4 ............... equation 1

y = x - 2 ............. equation 2

Solving the linear equation by substitution method , we have :

substitute equation 2 into equation 1 , that is

x - 2 = - x + 4

Add 2 to both sides , we have

x = -x + 4 + 2

Add x to both sides , we have

2x = 6

divide through by 2

x = 3

Substitute x = 3 into equation 2 to find the value of y , we have

y = x - 2

y = 3 - 2

y = 1

Therefore : x = 3 and y = 1

8 0
3 years ago
A textile mill wishes to establish a control procedure on flaws in towels it manufactures. Using an inspection unit of 50 units,
Natasha_Volkova [10]

Answer:

•A c-chart is the appropriate control chart

• c' = 8.5

• Control limits, CL = 8.5

Lower control limits, LCL = 0

Upper control limits, UCL = 17.25

Step-by-step explanation:

A c chart is a quality control chart used for the number of flaws per unit.

Given:

Past inspection data:

Number of units= 100

Total flaws = 850

We now have:

c' = 850/100

= 8.5

Where CL = c' = 8.5

For control limits, we have:

CL = c'

UCL = c' + 3√c'

LCL = c' - 3√c'

The CL stands for the normal control limit, while the UCL and LCL are the upper and lower control limits respectively

Calculating the various control limits we have:

CL = c'

CL = 8.5

UCL = 8.5 + 3√8.5

= 17.25

LCL = 8.5 - 3√8.5

= -0.25

A negative LCL tend to be 0. Therefore,

LCL = 0

4 0
3 years ago
How do I figure out order of operation?
Ilia_Sergeevich [38]


Parentheses
Exponents
Multiply/Divide
Add/Subtract
5 0
3 years ago
Can you please answer this question?
liraira [26]
300miles/20sec=?miles/1min
900miles/60sec=?miles/1min
900miles/1min=?miles/min
?=900 miles
3 0
3 years ago
Read 2 more answers
Abigail and Spencer calculate the slope of the line between the points (3,-1) and (5,4) in different ways. Abigail calculates th
Annette [7]
Abigail and Spencer are correct, Lauren is incorrect.

8 0
2 years ago
Other questions:
  • Terrence and Lee were selling magazines for a charity. In the first week, Terrance sold 30% more than Lee. In the second week, T
    11·1 answer
  • Area of a trapezoid: 9 m by 15m by 20m
    6·2 answers
  • Karen and her sister Tina want to get a pet. However, Karen wants a turtle and Tina wants a dog. Their parents tell them to flip
    7·1 answer
  • Lf a bus travels 6 km in 10 minutes, what distance does it travel in 1second<br>​
    5·1 answer
  • ◕‿◕ 。◕‿◕。 。◕‿‿◕。 ^̮^ (◕‿◕) (。◕‿◕。) (。◕‿‿◕。)<br><br> 7/8 ÷ 1/4
    12·2 answers
  • There are 360 degrees in a circle. How many arc seconds will be in 96 % of a circle?
    5·1 answer
  • What is 1/16 (fraction) divided by 24?
    6·2 answers
  • Tami spins a spinner with seven sections. The sections are
    12·2 answers
  • Please answer correctly and no links
    15·1 answer
  • Hey help please math I need help good luck I’ll I’ve point
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!