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anonymous
 one year ago
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Calculate EBA , given DA and m EFA =178º. The figure is not drawn to scale
90°
45°
133°
266°
http://static.k12.com/eli/bb/817/1/0/2_36869_44974/1/5c45df68fdad740c9f94d22ea5f92dd60c7a03f7/media/ccdbc5a3efc5b98917c43109efe2d5434ef545be/mediaasset_651869_1.jpg
anonymous
 one year ago
Fan & Medal to most helped Calculate EBA , given DA and m EFA =178º. The figure is not drawn to scale 90° 45° 133° 266° http://static.k12.com/eli/bb/817/1/0/2_36869_44974/1/5c45df68fdad740c9f94d22ea5f92dd60c7a03f7/media/ccdbc5a3efc5b98917c43109efe2d5434ef545be/mediaasset_651869_1.jpg

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dan815
 one year ago
Best ResponseYou've already chosen the best response.2oh these are interesting

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i thoguht it wa 90.......

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but now i think it is 45

dan815
 one year ago
Best ResponseYou've already chosen the best response.2u know that triangle there has a 91, so that angle has to be less than 89 at least

DanJS
 one year ago
Best ResponseYou've already chosen the best response.0This page i linked before is a good help... http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm

DanJS
 one year ago
Best ResponseYou've already chosen the best response.0very bottom one this time

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1@HWBUSTER00 The problem states "given DA", but the measure of arc DA is not there. What is it?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438787940138:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Without the measure of arc AD, you can;t solve this problem.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0...well there are multiple choice so it is one of them

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Why does the problem state "given DA" when DA is not given above? Did you copy all the information from the problem into your post?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol yes i did . that is the exact question . i think the teacher messed up . but that is the question

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Well, then, let's see if there are choices we can eliminate. dw:1438788488246:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438788576392:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now let's look at the choices. Choice A. m<B = 90 2(90) = 178  mDA mDA = 2 Since an arc cannot have a negative measure, choice A can't be correct.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Choice B. m<B = 45 2(45) = 178  mDA mDA = 88 This solution is possible, since we get a positive number for mDA

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so since it is less than 90 it has to be 45 right

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Choice C. m<B = 133 2(133) = 178  mDA mDA = 88 This solution is not possible, since we get a negative number for mDA

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Choice C. m<B = 266 2(266) = 178  mDA mDA = 354 This solution is not possible, since we get a negative number for mDA

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The only solution that works is B. 45

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks also what is cos(x) when it is 1

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438789256863:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The angle whose cosine is 1 is 180 or 180, and all coterminal angles.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh so nothing it is not 360 or 360. ok thats all i needed to know

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1360 and 360 is the same as 0 degrees. There, the cosine is 1, not 1
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