Mathematics
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OpenStudy (anonymous):
Please help me, the question is in the attachment below.
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OpenStudy (anonymous):
OpenStudy (anonymous):
well if you figure out all angles an combine you should get 28 if i did my math correctly :)
OpenStudy (anonymous):
PB has endpoints at -2 and 12. What is the coordinate of it's midpoint?
OpenStudy (anonymous):
The midpoint of CD is E(-1,0). One endpoint is C(5,2). What are the coordinates of the other endpoint?
OpenStudy (sleepyjess):
@krys-taylor , Welcome to OpenStudy! Please don't give direct answers.
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OpenStudy (anonymous):
yea ok
OpenStudy (sleepyjess):
@AquaStone316 , for the first one, we need to find the area of the large rectangle first,
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OpenStudy (anonymous):
The first question is already done, I just need the answers to the other 2 questions.
OpenStudy (sleepyjess):
The answer that @krys-taylor gave is incorrect though.
OpenStudy (anonymous):
thats cause your a mathlete lol
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OpenStudy (sleepyjess):
What is?
OpenStudy (anonymous):
How is it wrong?
OpenStudy (sleepyjess):
That is what I am trying to explain.
OpenStudy (anonymous):
so explain
OpenStudy (anonymous):
Ok then explain please because in my offense I'm very dumb when it comes to Geometry.
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OpenStudy (sleepyjess):
What is the area of the large rectangle?
OpenStudy (sleepyjess):
Don't say that you are dumb, that is why I am helping you, so you are not "dumb".
OpenStudy (anonymous):
25
OpenStudy (sleepyjess):
Why 25? How did you get to that?
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OpenStudy (anonymous):
9(on top) + 2 + 4(the bottom) + 5 + 5(sides) = 25
OpenStudy (sleepyjess):
Remember, area is base times height.
OpenStudy (sleepyjess):
9 is the base, 5 is the height
OpenStudy (anonymous):
So 45.
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OpenStudy (anonymous):
3
OpenStudy (sleepyjess):
Yes, now we need to subtract the area of that small square from the area of the large rectangle. What is the area of the small square?
OpenStudy (anonymous):
3
OpenStudy (sleepyjess):
That is the length and height, so what is 3*3?
OpenStudy (anonymous):
9
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OpenStudy (sleepyjess):
Yep, now what is 45-9?
OpenStudy (anonymous):
34
OpenStudy (sleepyjess):
That is 45-11
OpenStudy (anonymous):
36, sorry that was a typo.
OpenStudy (sleepyjess):
Yep :) so 36 is your answer
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OpenStudy (anonymous):
Ok thanks, now can you please answer my other 2 questions?
OpenStudy (anonymous):
@sleepyjess