anonymous
  • anonymous
I need help with these.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
Anyooooone? It's due soon
anonymous
  • anonymous
Too much reading effort LOL... but fine ill help ish

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anonymous
  • anonymous
I know! And thanks
anonymous
  • anonymous
The first one is law of sines. SinA/a=SinB/b
anonymous
  • anonymous
or let me write that more clearly... (Sin(A))/a=(Sin(B))/b
anonymous
  • anonymous
where A and B are the angles
anonymous
  • anonymous
and a and b are the side lengths.
anonymous
  • anonymous
you have all the numbers so just plug and chug
anonymous
  • anonymous
for the second part you need to use the law of cosines to find either angle C or sidelength c
anonymous
  • anonymous
a^2=(b^2+c^2)-2bc*cos(A)
anonymous
  • anonymous
again you have all the numbers so just plug and chug.
anonymous
  • anonymous
(oh and the two possible values come from two possible interpretations of sin)
anonymous
  • anonymous
(so basically you need to use the law of cosines twice or something) Finding the areas A=(1/2)*a*b*sin(C)
anonymous
  • anonymous
basically ive given you all the formulas, all you need to do is plug and chug and remember that there are two possible values when you do the arc sin in the initial part of the problem. So yeah you should be able to do it.
anonymous
  • anonymous
I need to go write my 5 page essay due tomorrow so gl!

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