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
Delicious77 [7]
3 years ago
12

Explain the distance formula. Than use it to calculate the distance between A(1, 1) and B(7, -7).

Mathematics
2 answers:
Alina [70]3 years ago
8 0
The answer is 10 units.

wlad13 [49]3 years ago
8 0

Answer:

The distance between A=(1,1) and B=(7,-7) is 10.

Step-by-step explanation:

If you have two points A=(x_{1},y_{1}) and B=(x_{2},y_{2}) the distance between those points is  the length of the segment that separates them. And the formula of that distance is:

d(A,B)=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}

Then the distance between A=(1,1) and B=(7,-7) is:

x_{1}=1\\y_{1}=1\\x_{2}=7\\y_{2}=-7

d(A,B)=\sqrt{(7-1)^2+((-7)-1)^2}\\d(A,B)=\sqrt{6^2+(-8)^2}\\d(A,B)=\sqrt{36+64}\\ d(A,B)=\sqrt{100} \\d(A,B)=10

The distance between A=(1,1) and B=(7,-7) is 10.

You might be interested in
HURRY I NEED HELP: Write an equation in point-slope form of the line that passes through the point (3, 5) and has a slope of m=−
skelet666 [1.2K]

Answer:

\huge y - 5 =  - 1(x - 3) \\

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

From the question we have the final answer as

y - 5 =  - 1(x - 3)

Hope this helps you

6 0
3 years ago
Light travels at a speed of about 186,000 miles per second. How far does light travel in 5 seconds? Use repeated addition to sol
aleksklad [387]
186,000+186,000+186,000+186,000+186,000=186,000*5=

930,000 miles in 5 seconds. Good luck my friend!
7 0
3 years ago
Plz help/..............
Genrish500 [490]
8x^5 +4x^2 - 12
= 4(2x^5 + x^2 -3)

answer is A
3 0
3 years ago
Twenty gremlins and fifteen imps are at the Annual Mischief Convention. The imps have had a lot of in-fighting lately and refuse
harina [27]

Answer:

490

Step-by-step explanation:

Let us first count the handshakes between two gremlins. There are 20 gremlins, so there must be 20*19/2=190 handshakes between two gremlins, making sure to divide by two to avoid over-counting.

There are 15 imps that shake hands with each of the 20 gremlins, which makes 15* 20 = 300 handshakes between imps and gremlins.

Adding these up, you have $300 + 190 = 490 total handshakes.

Hope this helps!

3 0
3 years ago
Read 2 more answers
Max measures the diagonal of a square room to be 32feet find the perimeter and area of the room round answers to the nearest ten
Rasek [7]
Hello!

To find the side length of a square with the diagonal you use the equation

a =  \sqrt{2}  \frac{d}{2}

a is side length
d is diagonal length

Put in the values you know

a =  \sqrt{2} *  \frac{32}{2}

Divide

a =  \sqrt{2} * 16

Multiply

a = 22.6

All the sides are 22.6 feet

Add all the sides

22.6 + 22.6 + 22.6 + 22.6 = 90.4

The answer is 90.4

Hope this helps!
3 0
3 years ago
Other questions:
  • Is 2 between 1.3 an 1.4
    8·2 answers
  • What type of sequence is this: 4, 6, 8, 10…?
    9·2 answers
  • In a certain classroom, the ratio of boys to girls is 2 to 1. If there are 39 students in the classroom, how many are boys?
    12·1 answer
  • the first four terms of an arithmetic sequence are 2,a-b, 2a+b+7 and a - 3b, where a and b are constants. Find a and b
    8·1 answer
  • In one area, the lowest angle of elevation of the sun in winter is 20 degrees. Find the distance x that a plant needing full sun
    12·1 answer
  • 2(r + 3) = <br> pls help meh
    9·1 answer
  • Someone help me with 5.84 divide 4
    12·2 answers
  • Change the followong decimals to percents and order them on the number line from least to gratest useing this numbers 0.02 ' 0.9
    14·1 answer
  • What is the equation of the line slope-intercept form?​
    12·1 answer
  • Two cartons of milk and one sandwich costs $3.00, and two sandwiches cost $4.20 without milk. Find the cost of one carton of mil
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!