The distance between the points (−5, 1) and (2, −1).
2 answers:
Answer: The distance which reduces to 7.28
Step-by-step explanation:
To find the distance between these two coordinates, find the difference of the y coordinates and x coordinates and square them then add them together to find their square root.
The y coordinates are 1 and -1.
The x coordinates are -5 and 2.
So -1-1 = -2
-5 - 2= - 7 Find their absolute values.
The absolute value of -2 is 2 and the absolute value of -7 is 7.
2^2 + 7^2 = d^2 where d is the distance.
4 +49 = d^2
53= d^2
d=
d= 7.28
You might be interested in
The area formula of a circle is × π.
With that being said, we can solve both problems!
Starting with part A:
-The radius we know is 21cm. From there, we can substitute in our formula with the new value.
x π
From there, we can square our radius:
(21 x 21) x π
(441) x π
And finally, we can multiply by pi to get our answer.
(441) x π
1385.44236023
Which rounded to the nearest tenth is 1385.4. Therefore, the area of the porthole is 1385.4 centimetres.
The second part can be followed with the same process, hopefully you understand the concept enough to where you're comfortable solving problems like this on your own. Feel free to reach out if you have any further trouble!
<em>Hope this helped! :)</em>