Question

I really really need help! Questions below! Will fan and medal for answer!

Answer 1

All I need is the value of x and if you used sine or cos.

Answer 2

Do you know the sine and cosine laws?

Answer 3

Yes But I just can't do it!

Answer 4

I've been trying and trying! I don't know whats wrong!

Answer 5

Sure you can! Let's walk through it together.

Answer 6

Okay.

Answer 7

So, for the top problem, we have 2 sides, and opposing angles.

Answer 8

When we have that, we use the sine law.

Answer 9

We would use sine right?

Answer 10

Yep!

Answer 11

That's what i thought. Then what?

Answer 12

We plug in the numbers we know, and solve for the one we don't.

Answer 13

Can you write it out?

Answer 14

How and where do we plug those in?

Answer 15

sinA/a=sinB/b A and a are opposing angle and side

Answer 16

B and b are opposing angle and side

Answer 17

Alright.

Answer 18

brb

Answer 19

okay

Answer 20

sinx/8=sin40/6

Answer 21

Do you see how I set that up?

Answer 22

Yes. I do.

Answer 23

:-) How do you think we can solve for x?

Answer 24

I don't know. This is where i get stuck.

Answer 25

Ok, so, we can first simplify the right side with a calc.

Answer 26

I got 0.10

Answer 27

Sweet, me too. Well, I didn't round that much, but that is the idea.

Answer 28

Now what?