OpenStudy (thecomputergeek):
What is the value of x? A. 3 B. 6 C. 3 square root of 2 D. 6 square root of 2 http://lv.k12.com/mediaFiles/Ninth_Grade/Math/Unit17844/Lesson69373/VHS_PA_S2_04_L208_L308_LQ_Q5.gif
OpenStudy (batmano3):
Okay so do you understand SohCahToa?
OpenStudy (thecomputergeek):
Yes, sir!
OpenStudy (batmano3):
Allright so tell me what are we going to use?
OpenStudy (thecomputergeek):
CAH, right?
OpenStudy (batmano3):
You are correct!
OpenStudy (batmano3):
Now plug them in and tell me what you get :)
OpenStudy (thecomputergeek):
Well, I think cos(45)= 0.70 so it should be...B..?
OpenStudy (batmano3):
Mmh not quiet what i got is C reason is because you would set it up like this \[\cos (45)=\left(\begin{matrix}6 \\ x\end{matrix}\right)\]
OpenStudy (thecomputergeek):
Ohhh!! That makes so much more sense! Thanks!
OpenStudy (batmano3):
:) no problem please fan me and medal !! Thanks so much :)