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
raketka [301]
2 years ago
5

Show that (0, 0) is equidistant from (1, 2), (-1, -2) and (2, 1).​

Mathematics
1 answer:
Len [333]2 years ago
3 0

Step-by-step explanation:

1) if (0;0) if point A, (1;2) is point B; (-1;-2) is C, (2;1) is D, then

2) the vector AB is (1;2); vector AC is (-1;-2) and vector AD is (2;1), then

3) the length of AB, AC and AD are:

|AB|=\sqrt{1^2+2^2}=\sqrt{5};

|AC|=\sqrt{(-1)^2+(-2)^2}=\sqrt{5};

|AD|=\sqrt{2^2+1^2}=\sqrt{5}.

4) if the lengths above are equal, then it means that (0, 0) is equidistant from (1, 2), (-1, -2) and (2, 1).

You might be interested in
Find the mean of the data in the bar chart below.
Snowcat [4.5K]
<h2>Answer:</h2>

12

<h2>Step-by-step explanation:</h2>

<u><em>The mean is also the average.</em></u>

Add up all the number of students all together:

12+13+14+9

48

Now, Divide the total amount of students (48) by the amount of numbers you added (in this case, 48/4 because we added 4 numbers wich are 12+13+14+9)

The average amount of students is 12

7 0
3 years ago
How did he get 289? Like where did it come from.
ahrayia [7]
From 17 x 17. to simplify, (1/2(17)(17) x tan A)
7 0
3 years ago
Solve the system of linear equations using either substitution or the elimination method.
lara31 [8.8K]

Answer:

x = -1

y = 2

Step-by-step explanation:

x + y = 1

y = -x + 1

y = -x + 1  (Multiply this by -1)

y = 3x +5

-y = x - 1

y = 3x +5

0 = 4x + 4

4x = -4

x = -1

x + y = 1

-1 + y = 1

y = 2

4 0
3 years ago
Please help
Elza [17]
The domain is y >=0. Domain is the possible x values
4 0
3 years ago
a trip from New York city to Seattle is 2,852.1 miles.  a family wants to make the drive in 10 days, driving the same number of
Nastasia [14]
2,852.1 miles / 10 days = about 285.21 miles per day .
6 0
3 years ago
Read 2 more answers
Other questions:
  • PLS HELP WILL MARK BRAINLIEST
    14·2 answers
  • Algebraic expression definition
    6·2 answers
  • If there are 1500 guests, only 1 of them brought a coupon for free admission to the carnival?
    12·1 answer
  • HELP PLEASE THIS IS TIMED BROOOOO
    5·1 answer
  • Graph x+3y = 6.<br> Please help
    6·1 answer
  • How do you inverse 3x-4y=6
    10·2 answers
  • I WILL GIVE YOU BRAINLY PLSS!!!
    9·1 answer
  • I need help right now!!!ASAP
    9·1 answer
  • Jaylon Bedford ordered a combo meal that included 2 hamburgers and a drink. The combo cost $8.50. If the drink is $1.50, how muc
    8·1 answer
  • 40 points :) Please help me
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!