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highschoolmom2010
Group Title
using Sin, Cos, Tan For parts (a)–(c), find the value of w to the nearest tenth
 one year ago
 one year ago
highschoolmom2010 Group Title
using Sin, Cos, Tan For parts (a)–(c), find the value of w to the nearest tenth
 one year ago
 one year ago

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ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
familiar wid SOHCAHTOA ?
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
you are zipping along... now learning trig ?
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
when you get time (if you want to see more info) http://www.khanacademy.org/math/trigonometry/basictrigonometry/basic_trig_ratios/v/basictrigonometry
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
not really understand but @phi that is in my lessons for geometry
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
yeah usually they put trig ratios right after similar triangles
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
i can kinda do it not really well yet
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
khan explains it better than trying to learn it from reading explanations here. This site is better for going over your problems
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
ok ok so watch his videos first :D
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
dw:1375894551709:dw doesnt really show how to do this @ganeshie8
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
first go to the 54 degree corner and stare at the triangle from there
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
dw:1375895636780:dw
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
dw:1375895683012:dw
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
thats opposite side eh ?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
yes thats the opposite
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
wat about 17, wat is it
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
Here is khan working this type of problem http://www.khanacademy.org/math/trigonometry/basictrigonometry/basic_trig_ratios/v/exampletrigtosolvethesidesandanglesofarighttriangle
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
the hypotenuse is opposite the 90º angle. 17 in (a) is the hypotenuse
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
idk what i was thinking it is hyp,
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
this is really confusing
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
@phi i think i got it dw:1375975866022:dw \[\sin 54=\frac{ w }{ 17 }\] \[17*\sin 54=\frac{ w }{ 17 }*17\] \[17\sin54=W\] \[W \approx13.8\]
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
ok now can yall check my b and c part when i get the posted
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
yea sure. remember this  hypotenuse is the longest side. it wont change no matter which corner u go
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
once you get the idea and stay focused (don't make a dumb mistake) and you know how to work a calculator this stuff is not hard.
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
dw:1375976336846:dw this one i get mixed up \[\tan \frac{ 1.0 }{ W }\] \[W* \tan 28=\frac{ 1.0 }{ W }*W\] \[W \tan 28=1.0\] im unsure of how to do that
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
remember that tan(28) is some (ugly) number which a calculator will know. divide both sides by tan(28)
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
you get w= 1/tan(28)
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
but when i plug in 1/tan(28) the calculator gave me this 3.55328644813
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
your calculator is in "radian mode" you want to be in degree mode
 one year ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.0
change the mode to degrees
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
ohh ok
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
1.88
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
so approx 1.9
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
horray ok and for the last pne
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
dw:1375977256082:dw \[\cos(33)=\frac{ w }{ 4.5 }\] \[4.5*\cos(33)=\frac{ w }{ 4.5 }*4.5\] \[4.5\cos(33)=W\] \[W \approx3.8\]
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.1
ty @phi & @ganeshie8 for the help
 one year ago
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