The Homework Help Corner

[IronOre12]

Greek anyone? ^.^

YE M80 FELLOW GREEK IN DA HOOOOUSE

Edit: Sorry for double post, I know!

 

[boboy1999]

Tomorrow I will put out an application for people to fill. Fill it out if you are willing to help in a specific subject. Then I will put your name on the thread so people can know who to ask for help.

 

[MagmaYeti]

As much as it may seem to be a good idea. What're you gonna learn from the question when other people are giving you the answers?
I may be taking this too seriously. But it feels like a cheat sheet to me.


For the record, I'm not a teacher.

Nope not true, I hate homework.

 

[Sepyz]

Bookmarked.

 

[Nephilim]

I could help with Latin, French, Dutch, Maths and a little History.

 

[IronOre12]

I could help with Latin, French, Dutch, Maths and a little History.

Belgian history?

 

[MCOnThePCAndrew]

Like the idea

 

[Nephilim]

Belgian history?

Mainly Europe, but Belgian as well of course.

 

[BitoBain]

I'm too lazy to do trigonometry right now, so someone give me the answer to this:

A triangle has sides equal to 5 cm, 10 cm and 7 cm. Find its angles (round answers to 1 decimal place).

You have to use the law of cosines, then the law of sines, then the rule that three angles/sides add up to 180.
Law of cosines:c^2=a^2+b^2-2abcosC
Law of sines:a/sinA=b/sinB=c/sinC

If you make 5=c, 7=b, and 10=a, then I got
C=27.66 degrees
B=40.53 degrees
A=111.81 degrees

Once you find the first angle using the law of cosines, you have to be careful when you continue using the law of sines. Whenever you use the law of sines to find the smallest side or the angle opposite the biggest side, you will get two answers. This one actually had me stumped for a bit because I kept getting that A=68.2 instead of the actual 111.81. Long story short, find the two smallest angles/two biggest sides first then solve for the rest by adding up to 180.

Edit: Sorry it was so late.

 

[Trilexium]

You have to use the law of cosines, then the law of sines, the the rule that three angles/sides add up to 180.
Law of cosines:c^2=a^2+b^2-2abcosC
Law of sines:a/sinA=b/sinB=c/sinC

If you make 5=c, 7=b, and 10=a, then I got
C=27.66 degrees
B=40.53 degrees
A=111.81 degrees

Once you find the first angle using the law of cosines, you have to be careful when you continue using the law of sines. Whenever you use the law of sines to find the smallest side or the angle opposite the biggest side, you will get two answers. This one actually had me stumped for a bit because I kept getting that A=68.2 instead of the actual 111.81. Long story short, find the two angles/two biggest sides first then solve for the rest by adding up to 180.

Edit: Sorry it was so late.

ty, I knew how to do it but I was just too lazy to do it.

 

[boboy1999]

I have to write a 2 page essay on something in real life that uses physics. Any topic ideas?

 

[Mooclan]

I have to write a 2 page essay on something in real life that uses physics. Any topic ideas?

Hm... I don't actually know what Physics involves, but does gravity count?