Question

http://prntscr.com/arj7ol
I'm having trouble understanding a few of the steps in the picture.

Answer 1

I can try to assist you if you'd like

Answer 2

Of course! Thanks a bunch! Give me a second to write what's confusing me.

Answer 3

In the book we have, all the numbers were squared first.
http://prntscr.com/aris5u
We added the two numbers on the right first before subtracting them from the left side.
So, what the individual in the original post is doing is confusing me.

Why did he take away 6.7 and 7.1 before they were squared? Also, wouldn't that yield a positive number when combined with 4.4 squared?

Next, we are we dividing -2(6.7)(7.1)?

Why not multiply everything and then add what we multiplied to the left side when we were done to get Cos V?

@AliAmpora

Answer 4

ok, well, im'm assuming this is two questions

Answer 5

Yep. : )

Answer 6

showing you how and why to do this would be so much easier if i could draw it out, but i'll do my best with this and add attachments if needed...

Answer 7

Alright!

You can draw it by the way.

There is a draw button right under where you type. : )

Answer 8

I just saw that XD
Thank you

Answer 9

ok, so

Answer 10

My mother will also help if possible

Answer 11

Haha, great!

Answer 12

so this is the problem, correct?

Answer 13

Yep

Answer 14

let me find the whole equation out and ill get back to you XD

Answer 15

Ok, so seeing as how my mother is not good at this im gonna go off a limb and use the magical powers of math and deduction.

Answer 16

Alright! Haha.

By the way, http://prntscr.com/arjg72
(just an example not actually part of the problem)

My first question revolves around the simplification process. I understand why take away -117 from both sides, but I'm not understanding why we aren't adding -108 to both sides.

That's fine HAHA.

Answer 17

You don't have to work it all out if you don't want to if you can just explain that step, but whatever is easier for you. : )

Answer 18

Well, two steps.

One why we aren't adding to both sides, and two why we divide instead of just adding the number to both sides.

Answer 19

to be honest, i suck at math, and this is probably gonna end up helping both of us, im good with doing, but showing work makes it a pain :/

Answer 20

holy shiz i reread what i was about to type and it would've confused you even more4...

Answer 21

Haha. It's alright. I'll wait. : )

Answer 22

@Mehek14 please help XD

Answer 23

i dont want to confuse you @Kikuo

Answer 24

i understand it, but my mind works on a different algorithm that would make no sense so i am in other words completely useless

Answer 25

It's fine haha!

Answer 26

If you ever need help on like vocabulary or Hitler, Ancient Egypt, or music, i can make it understandable though Xd

Answer 27

Don't take my knowledge on those things badly, i just find them interesting, and have both positive and negative views on them all. Well, those things and animal science... sorry, my good knowledge is limited to random things

Answer 28

I can solve things pretty easily, but that's about it

Answer 29

@AliAmpora
http://prntscr.com/arjory

I've put this into my calculator ten times, and I keep getting the wrong answer. What am I doing wrong?

Answer 30

I'm doing 216^2+60.5^2-60.5x216x2xcos34

Answer 31

I keep getting 0.82903757

And this is before I take the square root

It's supposed to be
a² = 28648 ft²

Answer 32

i don't trust math, but...

Answer 33

first of all, i totaly dont remember what Cos means

Answer 34

and is that just an example? Am i still attempting to explain the first question?

Answer 35

No haha. We will let someone else do that.

I just want to know what I'm doing wrong with my calculator.

Answer 36

Someone else offered to help me, but I told him I'm going to make a new thread since this one was a bit messy. Thanks for trying!

Answer 37

no problem haha
thamnks for reading my horrible grammar and random rambles