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
Rus_ich [418]
3 years ago
12

If A = (4,-5) and B = (7.-9), what is the length of AB?​

Mathematics
1 answer:
Nookie1986 [14]3 years ago
5 0

Answer:

5

Step-by-step explanation:

We can figure out the length of AB by using the distance formula.

D = \sqrt{(7-4)^{2} + (-9-(-5))^{2} }\\ D = \sqrt{(3)^{2} + (-4)^{2} }\\D = \sqrt{9 + 16}\\D = \sqrt{25}\\D=5

So the distance is 5

You might be interested in
a water wheel has a radius of 18 feet. The wheel is rotating at 10 revolutions per minute. Find the linear​ speed, in feet per​
Yuri [45]

Answer:

The linear speed is 1,130.4\frac{ft}{min}

Step-by-step explanation:

step 1

Find the circumference of the circle

The circumference is equal to

C=2\pi r

we have

r=18\ ft

\pi =3.14

substitute

C=2(3.14)(18)

C=113.04\ ft

step 2

Find the linear speed in feet per minute

we know that

The wheel is rotating at 10 revolutions per minute

Convert revolutions to feet

Remember that

One revolution is equal to the circumference of the circle

so

10 revolutions is equal to

(10)113.04=1,130.4\ ft

therefore

The linear speed is 1,130.4\frac{ft}{min}

3 0
3 years ago
Use the balanced scale to find the conversion factor that can be used to convert the number of blocks to the weight of the block
Alexandra [31]

Find Total weight at left side

\\ \sf\longmapsto 6(1lb)=6lbs

Now

Per block weight at right side

\\ \sf\longmapsto \dfrac{6}{4}=1.5lbs

6 0
3 years ago
Write 900,000+80,000+500+7 in standard form
Gnoma [55]
900,000+80,000+500+7 is 980,507
4 0
3 years ago
Read 2 more answers
-10 2/7 divided by -4 4/11
madam [21]
The answer is 2.35714285714!
hope this helps!!
4 0
3 years ago
Read 2 more answers
100 points to answer!
choli [55]

Answer: 27.47

Step-by-step explanation:

(sin(70) * 10) / sin(20)) = 27.47

don't know much, but try that

4 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Solve for x.<br><br> Need help in math
    5·1 answer
  • What is the answer to this question
    13·1 answer
  • Find the volume of this cylinder. Give your answer to one decimal place.
    9·1 answer
  • The difference between a positive and negative association?
    9·1 answer
  • What the volume of this tank is?
    6·2 answers
  • What the answer?? Help me pls!
    12·2 answers
  • 3 lines are shown. A line with points T, R, W intersects with a line with points S, R, V at point R. Another line extends from p
    8·2 answers
  • Anyone know this because I need help !!!!
    14·2 answers
  • Tony operates a skate rental company. He charges an equipment fee of $3 plus $6 per hour. Which equation represents this linear
    5·1 answer
  • Describe the graph of the function Y equal square root X plus 3
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!