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Mathematics 15 Online
OpenStudy (anonymous):

Picture of question is now up Questions A-F in the picture Pleaseeeee Help :))

OpenStudy (anonymous):

OpenStudy (anonymous):

Name all points collinear with E & F

OpenStudy (helder_edwin):

collinear means they are over the same line

OpenStudy (anonymous):

Collinear means points lie on the same line not over

OpenStudy (helder_edwin):

sorry that's what i meant

OpenStudy (anonymous):

lol its okay... Can You help me?????

OpenStudy (helder_edwin):

look at the picture. which points are on the same as E and F??

OpenStudy (anonymous):

i wanna say D?

OpenStudy (anonymous):

O and C?

OpenStudy (anonymous):

noo just D

OpenStudy (helder_edwin):

D is fine. there's one more though...

OpenStudy (helder_edwin):

just between E and D

OpenStudy (anonymous):

O/

OpenStudy (helder_edwin):

no. it is B

OpenStudy (anonymous):

OHHHHH i see

OpenStudy (helder_edwin):

great. now (b). can u draw a straight line passing through G E and D??

OpenStudy (anonymous):

No

OpenStudy (helder_edwin):

so r they collinear??

OpenStudy (anonymous):

nope

OpenStudy (helder_edwin):

cool. now are F and C collinear??

OpenStudy (anonymous):

nope

OpenStudy (helder_edwin):

now (c). sorry i can't read this one completely.. what does it say after "are"???

OpenStudy (anonymous):

are congruent sorry

OpenStudy (helder_edwin):

can u answer this one???

OpenStudy (anonymous):

ummm i dont think they are congruent because they dont loook like its the same size

OpenStudy (helder_edwin):

do u see those circles drawn on the segments AB and BC. what do they mean??

OpenStudy (anonymous):

umm those are the tick marks

OpenStudy (helder_edwin):

yeah. what do they mean???

OpenStudy (anonymous):

ohh sorry umm let me see

OpenStudy (helder_edwin):

they mean exactly what u r being asked!!!

OpenStudy (anonymous):

they idicate if those two segments are congruent

OpenStudy (helder_edwin):

yes. so u now have answer to (c)

OpenStudy (anonymous):

yeah the answer is no right?

OpenStudy (anonymous):

ohh no i tweaked i know the answer

OpenStudy (helder_edwin):

now (d)

OpenStudy (anonymous):

yeah...i wanna say no because A lookes much bigger than D

OpenStudy (helder_edwin):

do u see those small squares drawn there, exactly in A and D. what do they mean???

OpenStudy (helder_edwin):

|dw:1346375139750:dw| when u draw an angle and put this small square, what r u saying??

OpenStudy (anonymous):

oh they congruent

OpenStudy (helder_edwin):

yes. the small square says the angle has measure 90º

OpenStudy (anonymous):

yeah i understand

OpenStudy (anonymous):

OpenStudy (helder_edwin):

now (e)

OpenStudy (anonymous):

im looking at it right now

OpenStudy (anonymous):

ummm yes?

OpenStudy (helder_edwin):

i think it is NO.

OpenStudy (anonymous):

i knew it!

OpenStudy (helder_edwin):

now (f)

OpenStudy (anonymous):

B (thats the answer)

OpenStudy (helder_edwin):

yes. do u now the difference between \[ \large \overline{MN} \] and \[ \large \overleftrightarrow{MN} \]

OpenStudy (anonymous):

yeah the first one is line and the other one is line segment

OpenStudy (anonymous):

wait is that right?

OpenStudy (helder_edwin):

the other way around

OpenStudy (anonymous):

yeah okay lol

OpenStudy (helder_edwin):

just checking. this diffence gives u the answer B to (f).

OpenStudy (anonymous):

oh really didnt know that? well (g)

OpenStudy (helder_edwin):

the \(\cap\) means intersection. i.e., what is common to both segments!!!

OpenStudy (anonymous):

G?

OpenStudy (helder_edwin):

yes. now (h) the \(\cup\) means "union". i.e., put the segments together!!

OpenStudy (anonymous):

AGF?

OpenStudy (helder_edwin):

no. it has to be a segment!!!

OpenStudy (anonymous):

OH okay my baaad. umm idk because im looking at it and i have an answer but it might be wrong

OpenStudy (helder_edwin):

u r learning. making mistakes here costs u nothing. making mistakes in your tests will cost dearly (my macroeconomics professor used to tell us this)

OpenStudy (anonymous):

yeah but your yelling using exclamation points which make me nervous

OpenStudy (helder_edwin):

sorry about that. won't do it again

OpenStudy (anonymous):

okay thanks. Now for the answer you said is has to be a segment which can only have 2 points?

OpenStudy (helder_edwin):

yes

OpenStudy (anonymous):

ohh umm AF?

OpenStudy (helder_edwin):

yes. now (i).

OpenStudy (anonymous):

yay :)

OpenStudy (helder_edwin):

again. i can't read it completely.

OpenStudy (anonymous):

there is only one way to list it...

OpenStudy (anonymous):

B lies on a ray whose endpoints is E. Name this ray in all possible ways.

OpenStudy (helder_edwin):

u have 3 possible ways. which are they??

OpenStudy (anonymous):

umm DBE,EBD, and umm thats all i can see

OpenStudy (helder_edwin):

no. to denote a ray is quite same as for a segment: two points.

OpenStudy (anonymous):

ohh okay umm lemme try again

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