So i have a final review packet and i really need these answered by the end of the day or so. PLEASE help me!

i'm desperate!

 

 

*=Degrees lower case letters are sides, uppercase letters are Angles

In triangle ABC we have a=123, c=86 and C=52* Find B

In triangle ABC we have a=80, b=51 and c=113 Find C

In triangle ABC we have a=16, b=19 and C=63 Find A

These three are law of cosines... i think Then

Find the 10th term in the Arithmetic sequence... -1,1,3

Then

Convert the rectangular coordinates to Polar coordinates (4,330*) and Convert from Polar to Rectangular rsin(Ɵtheta) = -3

Just do the laws of cosines and sines until you get all of the parts you need.

Then do a(n)=a(1)+(n-1)d for the next

 

Then Idfk

 

Also, inb4lock

I know you gotta do the law of cosines but i always screw up. Why lock??

just please solve?

I know you gotta do the law of cosines but i always screw up. Why lock??

just please solve?

Did you not learn it in school? c^2=a^2+b^2-2(a)(b)CosC?

yes i learned it in school, but i REALLY suck at this. i screw up EASY! Math is NOT my thing.

This looks an awful lot like homework, and we disallow threads asking for help on such topics.

 

Closing this, if you wish to discuss it with me via PM, feel free to drop me a message.