Question

Easy Trig problem..please help..giving out medals!

Answer 1

Please help with #1 and #2

Answer 2

picture is too blurry sry

Answer 3

better pic

Answer 4

@hwtrain

Answer 5

Ok so you know what Angle C and you know the radius length which also one of the side of the triangle if you take a closer look.Ok so know you need to find the Hypotenuse, Do you know how to do that?

Answer 6

cos89=6370/h? but when I do that, it doesn't work

Answer 7

6378

Answer 8

12501?

Answer 9

Yeah that's what I got.

Answer 10

can you help me with this? #4 and #5

Answer 11

Sure

Answer 12

thanks!

Answer 13

Uh... I only see 1, 2, & 3

Answer 14

yeah can you help with 1 and 2?

Answer 15

@hwtrain

Answer 16

Ok now, I think it would be easier if you rotate the triangle where its leveled
So now if you do sine of .25 you get
\[\frac{ r }{ r + 384,403 }\]

Answer 17

ok what is next?

Answer 18

For #2 you have,
\[\sin 0.25degrees = \frac{ r }{ r + 384,403 }\]So multiply r + 384403 to sin .25
So you'll have
\[\sin 0.25 (r + 384403) = r\]Then Distribute and find r

Answer 19

ok next?

Answer 20

So it would be sin 0.25 r +(sin 0.25 * 384403) = r So if you do sine .25 you get .2474.....
.2474 r + 95102.82 = r minus .2474r to other side
95102.82 = .7525r divide .7526 to get r
\[r=\frac{ 95102.82 }{ .7525 }= 126366.36km\]

Answer 21

ok thanks! can you help with #3? last question

Answer 22

I think that you can search online because it wants you to find the up-to-date figure for the radius of the moon.

Answer 23

Hope this helps and Good Luck :)