Solve for x. Round to nearest tenth.
I have to solve for both of them using the same "Solve for x. Round to nearest tenth."
use sin35=x/20 and cos62=50/x
How does that work?
I need a little more information I do not completely understand the concept of sin or cos or how working them out would work
sina=perpendicular distence/length of hypotenuse cosa=lenght of base/length of hypotenuse
That will give me the answer to the two questions? sina for the first and cosa for the second?
sin35 = -0.428?
cos62 = 0.673?
sin35=0.5735 and cos62=0.469
How did you get those because I entered them into the calculator and got different answer
I put cos62 then pushed = and it came up with .673
check the mode it's in radian calculate them in degree
switched it over and got the correct answer okay so where do I go now that I got the .573 and the .469?
yes now plug them on above equations and solve for x
plug them into what equation?
these equations sin35=x/20 and cos62=50/x know how to get them ?
Yes I just got them on the calculator Sin35 = .573 Cos62 = .469 but now what do I do with those numbers?
sin 35 = x/20 0.573 = x/20 x= 0.573 * 20 = ... like this
but the important point is whether you can get those equations on your own
oh okay thank you! and that is the answer for X perfect!
I did get them on my own, I got them wrong at first because the calculator was on RAD and not DEG but I changed it over and got the correct numbers
i wasn't talking about the values, i was talking about the equation sin 35 = x/20 you could get this on your own ?
yeah ... .573 * 20 = 11.46
|dw:1399111834623:dw| \(\huge \cos \theta =\dfrac{adjacent ~side }{hypotenuse} = \dfrac{a}{c} \) \(\huge \sin \theta =\dfrac{opposite ~side }{hypotenuse} = \dfrac{b}{c} \)
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