Bansh-eman Posted January 18, 2007 Report Posted January 18, 2007 ok so i know what the answer is but i need an explanation of how to get the answer.... in an experiment, a laser contacts a flat surface detector so that one angle between the laser beam and the detector is 57 degrees less than two times the other angle. what is the measurement of the larger angle? im not going to give the chices to see if you can get it and explain hwo to get it so i can help a buddy with his home work. Quote
dajogejr Posted January 18, 2007 Report Posted January 18, 2007 ok so i know what the answer is but i need an explanation of how to get the answer.... in an experiment, a laser contacts a flat surface detector so that one angle between the laser beam and the detector is 57 degrees less than two times the other angle. what is the measurement of the larger angle? im not going to give the chices to see if you can get it and explain hwo to get it so i can help a buddy with his home work. What was the question again? I can't stop staring at those cans.... Quote
okbeast Posted January 18, 2007 Report Posted January 18, 2007 139 degrees right? i tried somethin but dont think its right... Quote
Bansh-eman Posted January 18, 2007 Author Report Posted January 18, 2007 139 degrees right? i tried somethin but dont think its right... nope Quote
dawarriorman Posted January 18, 2007 Report Posted January 18, 2007 (edited) ok so i know what the answer is but i need an explanation of how to get the answer.... in an experiment, a laser contacts a flat surface detector so that one angle between the laser beam and the detector is 57 degrees less than two times the other angle. what is the measurement of the larger angle? im not going to give the chices to see if you can get it and explain hwo to get it so i can help a buddy with his home work. Set up a system of equations. Angle 1 is x, angle 2 is y. And you know that a flat line is 180 degrees right? So... x = 2y - 57 and x + y = 180 replace x in the second with the 1st equation: (2y - 57) + y = 180 3y = 237 y = 79 so for x put your value for y back in one of the other equations and solve... x + (79) = 180 x = 101 Edited January 18, 2007 by dawarriorman Quote
Bansh-eman Posted January 18, 2007 Author Report Posted January 18, 2007 Set up a system of equations. Angle 1 is x, angle 2 is y. And you know that a flat line is 180 degrees right? So... x = 2y - 57 and x + y = 180 replace x in the second with the 1st equation: (2y - 57) + y = 180 3y = 237 y = 79 so for x put your value for y back in one of the other equations and solve... x + (79) = 180 x = 101 go you lol thats it... thanks my man! Quote
okbeast Posted January 18, 2007 Report Posted January 18, 2007 Damn, I used both x's instead of x and y...well i had the right idea Quote
locogato11283 Posted January 18, 2007 Report Posted January 18, 2007 thats just stupid. who really needs to know that shit anyway.. Quote
LiftdT4R Posted January 18, 2007 Report Posted January 18, 2007 thats just stupid. who really needs to know that shit anyway.. I was wonderin' the same thing. :yelrotflmao: Quote
Bansh-eman Posted January 18, 2007 Author Report Posted January 18, 2007 thats just stupid. who really needs to know that shit anyway.. anyone that wants a degree Quote
fox_forma Posted January 18, 2007 Report Posted January 18, 2007 anyone that wants a degree I have a degree and I cant remember that crap for anything :: Quote
locogato11283 Posted January 18, 2007 Report Posted January 18, 2007 anyone that wants a degree ill have a degree after this semester and ive never done that shit before. i had one math class in college, and we did NOT do that shit. Quote
Bansh-eman Posted January 18, 2007 Author Report Posted January 18, 2007 I have a degree and I cant remember that crap for anything :: no one said anything about remembering... ill have a degree after this semester and ive never done that shit before. i had one math class in college, and we did NOT do that shit. you never had to do college algebra? this is only 8th grade level too this guys having to do the pre algebra to get into the intro to algebra then to college algebra Quote
locogato11283 Posted January 18, 2007 Report Posted January 18, 2007 you never had to do college algebra? yea, but we didnt have any lasers pointin anywhere. ha. Quote
Bansh-eman Posted January 18, 2007 Author Report Posted January 18, 2007 lol it doesnt have to be lazers :shoothead: its using it for angles and that just happened to be what the guy put on there... dont ask why.. im just trying to help my buddy woith his work before he took his test... Quote
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