Ammarah
  • Ammarah
Use a sine or cosine ration to find the value of each variable. Round decimals to the nearest tenth.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Ammarah
  • Ammarah
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mathstudent55
  • mathstudent55
In these triangle problems you have to look at the information you are given. First, look at the right angle. The side opposite that angle is the hypotenuse. In this case it's "n". Then look at the angle that is not the right angle that you either have an angle measure or is an unknown you are solving for. Here it's a 50-degree angle. For the 50-degree angle, side "m" is next to it. So side m is adjacent to that angle of 50 degrees. the leg that measures 8 is opposite to the 50-degree angle.
anonymous
  • anonymous
remembering this might help you out: SohCahToa

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mathstudent55
  • mathstudent55
To solve for n, keep in mind n is the hypotenuse. For the angle of 50 degrees, the only known side is the leg the measure 8 which is opposite the 50-deg angle. So you have an angle, and opposite side and a hypotenuse. What connects the opposite side to the hypotenuse? It's the sine bec sin A = opp/hyp sin 50 = opp/hyp sin 50 = 8/n n = 8/sin 50 To solve for m, once again, look at the 50-deg angle. The side measuriong 50 is next to it, so it's an adjacent side. You need to connect the adjacent side to the hypotenuse which is n, so you use the cosine function: cos 50 = adj/hyp cos 50 = m/8 m = 8/cos 50
AravindG
  • AravindG
@mathstudent55 nicely explained :)
Ammarah
  • Ammarah
is the answer n=10.5?
AravindG
  • AravindG
i got 10.44
AravindG
  • AravindG
n=10.44
AravindG
  • AravindG
@Chickenisgood delete that u will get banned
Ammarah
  • Ammarah
but it says to round to the nearest tenth
AravindG
  • AravindG
ok then it will be 10.4
Ammarah
  • Ammarah
when u find the cos and the sin how many decimal places do u use?
AravindG
  • AravindG
depends on hw it should be reported i use 2 decimal places
Ammarah
  • Ammarah
but does it give u differnt answers? cuz in the book it uses four
AravindG
  • AravindG
well 10.4 is the nearest value from 10.44
Ammarah
  • Ammarah
u mean from 10.5?
AravindG
  • AravindG
from 10.44
Ammarah
  • Ammarah
so the answer is 10.4 right?

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