Geometry
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OpenStudy (anonymous):
here's another im a little confused at this one
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OpenStudy (anonymous):
OpenStudy (anonymous):
@Lyrae
OpenStudy (lyrae):
Like we did in the first question! Remeber the distance formula?
OpenStudy (anonymous):
ok i'll try it again
OpenStudy (anonymous):
i got sq rt of 20 which is 4.47
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OpenStudy (lyrae):
Yeah, can you simply \[\sqrt{20} ? \]
OpenStudy (anonymous):
oh 5?
OpenStudy (lyrae):
5?
OpenStudy (anonymous):
hmmm
OpenStudy (anonymous):
sq rt of 5 is 2.23
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OpenStudy (lyrae):
You know that \[\sqrt{ab} = \sqrt{a} \sqrt{b}\]So if you turn 20 into it's prime factors maby you'll find something usefull...
OpenStudy (anonymous):
and here are my answer choices: 2 to the sqrt of 1, 2 to the sqrt of 5, 2 to the squareroot of 7, or 2 to the sqrt of 3
OpenStudy (anonymous):
sqrt of 5 and sqrt of 4?
OpenStudy (lyrae):
Yes, and what's sqrt 4?
OpenStudy (anonymous):
2
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OpenStudy (lyrae):
And the final answer??
OpenStudy (anonymous):
2 to the sq rt of 5
OpenStudy (lyrae):
yep!
OpenStudy (lyrae):
Or rather two times the sqrt of 5
OpenStudy (anonymous):
thxx again 4 yur help!
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OpenStudy (lyrae):
Yw :)
OpenStudy (anonymous):
how would I find the coordinates of the midpoint using the info i already know?
OpenStudy (lyrae):
Using the same points?
OpenStudy (anonymous):
yep
OpenStudy (lyrae):
Midpoint formula!
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OpenStudy (anonymous):
did we go over this?
OpenStudy (lyrae):
Yeah, it's the exact same question like the secont one, but with different points.
OpenStudy (anonymous):
ohhh ok thks!
OpenStudy (lyrae):
np
OpenStudy (anonymous):
wow how did i 4get this