Mathematics
7 Online
OpenStudy (anonymous):
Find the distance between these points.
W(-6, -8), X(6, 8)
20
10
√8
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OpenStudy (anonymous):
Ok. This is simple. Do you know the distance formula?
OpenStudy (anonymous):
nope
OpenStudy (anonymous):
\[\sqrt{(x2-x1}^2 + (y2-y1)^2\] That's the formula!
OpenStudy (anonymous):
what do i do from here
how do I get the anser
OpenStudy (anonymous):
Just plug it in. The points are (x1,y1) and (x2,y2)
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OpenStudy (anonymous):
\[\sqrt{(8+6)^2 + (6+8)^2}\]
OpenStudy (anonymous):
Now solve.
OpenStudy (anonymous):
14+14 = 28 ???????
OpenStudy (anonymous):
No. 14^2 + 14^2
OpenStudy (anonymous):
That 14^2=14x14=196
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OpenStudy (anonymous):
So 196+196
OpenStudy (anonymous):
So 392
OpenStudy (anonymous):
Square root of 392 is 19.80 Hope you understand :D What grade are you in?
OpenStudy (anonymous):
Im in 7 but how is the answer 19.80 if the answers should be one of these
20
10
√8
OpenStudy (anonymous):
Round. So the answer is 20. The first one :D
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OpenStudy (anonymous):
Medals are appreciated :P
OpenStudy (anonymous):
oh okay thanks I will give you a medal :) for helping me
OpenStudy (anonymous):
Do you understand though? And your welcome! Btw I am in 8th and I am taking Geometry! So i'm doing this in my school now!