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Mathematics 19 Online
OpenStudy (anonymous):

Find the perimeter of triangle CDE

OpenStudy (anonymous):

OpenStudy (anonymous):

do you know how to use the distance formula?

OpenStudy (anonymous):

No, I dont.

OpenStudy (anonymous):

http://www.purplemath.com/modules/distform.htm take a look at this and then post again if you still have questions.

OpenStudy (anonymous):

Okay. Will do.

OpenStudy (anonymous):

Connections Academy, ftw.

OpenStudy (anonymous):

?

OpenStudy (anonymous):

Me and Kenzielove go to the same school, xD.

OpenStudy (anonymous):

Who is Frost?

OpenStudy (anonymous):

A guy who goes to Connections Academy also. :P

OpenStudy (anonymous):

Named? and how do you know me?

OpenStudy (anonymous):

My name is Jay Seaton, and we probably don't live in the same state. I don't exactly KNOW you but I'm taking the same Math Unit test as you, so I assumed that you also go to connections xD

OpenStudy (anonymous):

Oh I do. Any Help Please! I dont understand.

OpenStudy (anonymous):

still need help Kenziellove?

OpenStudy (anonymous):

Me either, but I have gotten pretty far on the test thing. I don't have this one yet but is there another you need help with?

OpenStudy (anonymous):

a bunch frost. and yes i do need help.

OpenStudy (anonymous):

did you get the mid point one? with the graph?

OpenStudy (anonymous):

You mean #12? Yes I got that one it was : (1, 1)/ B

OpenStudy (anonymous):

what about 13?? lol

OpenStudy (anonymous):

determine the distance between points D (1, 4) and E (3, -2). using the distance formula...\[d = \sqrt{(1-3)^{2} - (3-(-2))^{2}}\]

OpenStudy (anonymous):

I haven't got 13 yet D:

OpenStudy (anonymous):

hmmmm me either :(

OpenStudy (anonymous):

Did you get 10?

OpenStudy (anonymous):

i got the coordinates wrong. sorry

OpenStudy (anonymous):

its okay pg.

OpenStudy (anonymous):

so far i dont have 9, 10, 7, and 11 @Frost

OpenStudy (anonymous):

and that should be a '+' sign in the radical...

OpenStudy (anonymous):

so @pg. calc what would the final answer be?

OpenStudy (anonymous):

#9 is 15.8/ A

OpenStudy (anonymous):

#7 is B/ 5in , 10in, 15in

OpenStudy (anonymous):

what about 10? and frost your saving my life here!

OpenStudy (anonymous):

i have messed this up pretty bad by trying to 'show' you how to do it. so one minute.

OpenStudy (anonymous):

otayyyyy

OpenStudy (anonymous):

lol I didn't get #10 yet, but I have #11 now; it's C/ (2.5,2)

OpenStudy (anonymous):

okayyyyyyy but do you have any others?

OpenStudy (anonymous):

@Frost what state?

OpenStudy (anonymous):

distance from D to E = \[\sqrt{40}\] distance from E to C = \[\sqrt{45}\] and the distance from C to D is \[5\] add these up for the perimeter.

OpenStudy (anonymous):

Georgia xd

OpenStudy (anonymous):

whats the schools name?

OpenStudy (anonymous):

GACA (Georgia Connections Academy or something like that lol)

OpenStudy (anonymous):

and pg.calc so it would be "18"?

OpenStudy (anonymous):

cool so the answer for #10 is B./18.0 thanks pg.calc

OpenStudy (anonymous):

you are welcome. good luck. 18.03 or so.

OpenStudy (anonymous):

okay @pg.calc what about this what is the porportion and value of x?

OpenStudy (anonymous):

@pg.calc hellooooooooooooooooooooo?

OpenStudy (anonymous):

one second

OpenStudy (anonymous):

i have no idea how to do that xD

OpenStudy (anonymous):

okayyyyy

OpenStudy (anonymous):

Kenzie did you take crct already?

OpenStudy (anonymous):

or whatever the final exams/tests are called in your state xD

OpenStudy (anonymous):

no i didnt

OpenStudy (anonymous):

while there may be a more sophisticate method, I would start by determining the distance from PZ

OpenStudy (anonymous):

im clueless when it comes to this so huh?

OpenStudy (anonymous):

and the proportion of \[x\] to what?

OpenStudy (anonymous):

to this whole question!

OpenStudy (anonymous):

use the Pythagorean theorem... \[a ^{2} + b ^{2} = c ^{2}\]

OpenStudy (anonymous):

and thenn?

OpenStudy (anonymous):

\[c ^{2} = 10^{2}, a ^{2} = 6^{2}\] so...\[b ^{2} = \sqrt{100 - 36}\]

OpenStudy (anonymous):

so its 6?

OpenStudy (anonymous):

@Frost did you get any more questions?

OpenStudy (anonymous):

i would probably say it is 8

OpenStudy (anonymous):

okay is that the final answer?

OpenStudy (anonymous):

that really doesn't help much. sorry I am at work and am constantly being distracted.

OpenStudy (anonymous):

use cos to determine the angle ZMP

OpenStudy (anonymous):

the angle ZMP is \[\cos^{-1} 6/10 = 53.13\]

OpenStudy (anonymous):

nvrmnd. it is easier than I am making it.

OpenStudy (anonymous):

the ratio of the sides are going to be |dw:1335537032616:dw| where the '?' is going to be equal to (10 + x)

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