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highschoolmom2010
 3 years ago
using Sin, Cos, Tan For parts (a)–(c), find the value of w to the nearest tenth
highschoolmom2010
 3 years ago
using Sin, Cos, Tan For parts (a)–(c), find the value of w to the nearest tenth

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ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0familiar wid SOHCAHTOA ?

phi
 3 years ago
Best ResponseYou've already chosen the best response.1you are zipping along... now learning trig ?

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

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1not really understand but @phi that is in my lessons for geometry

ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0yeah usually they put trig ratios right after similar triangles

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1i can kinda do it not really well yet

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

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1ok ok so watch his videos first :D

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1375894551709:dw doesnt really show how to do this @ganeshie8

ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0first go to the 54 degree corner and stare at the triangle from there

ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1375895636780:dw

ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1375895683012:dw

ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0thats opposite side eh ?

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1yes thats the opposite

ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0wat about 17, wat is it

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

phi
 3 years ago
Best ResponseYou've already chosen the best response.1the hypotenuse is opposite the 90º angle. 17 in (a) is the hypotenuse

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1idk what i was thinking it is hyp,

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1this is really confusing

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

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1ok now can yall check my b and c part when i get the posted

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

phi
 3 years ago
Best ResponseYou've already chosen the best response.1once 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.

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1dw: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

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

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1but when i plug in 1/tan(28) the calculator gave me this 3.55328644813

phi
 3 years ago
Best ResponseYou've already chosen the best response.1your calculator is in "radian mode" you want to be in degree mode

ganeshie8
 3 years ago
Best ResponseYou've already chosen the best response.0change the mode to degrees

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1so approx 1.9

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1horray ok and for the last pne

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

highschoolmom2010
 3 years ago
Best ResponseYou've already chosen the best response.1ty @phi & @ganeshie8 for the help
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