Question

Im dealing with tangents. I need help finding x. (problem attached) PLEASE HELP

Answer 1

@jim_thompson5910 You're smart I need you

Answer 2

the side marked x is opposite the angle 33

the length of 13 is the hypotenuse

Answer 3

so which trig function uses the opposite side and the hypotenuse?

Answer 4

any ideas?

Answer 5

sine! @jim_thompson5910

Answer 6

good

Answer 7

sine = opp/hyp

sin(33) = x/13

13*sin(33) = x

x = 13*sin(33)

x = ???

Answer 8

I got 8.4422 is that right? @jim_thompson5910

Answer 9

unfortunately no

Answer 10

I'm not sure how you got that, but try it again

Answer 11

well im not sure. I multiply dont I?

Answer 12

first you evaluate the sine of 33

Answer 13

then you multiply

Answer 14

I tried again and got 12 something...

Answer 15

hopefully you're in degree mode

Answer 16

isnt the sine of 33 .9999?

Answer 17

sin(33) = 0.54463903501502

Answer 18

you must've been in radian mode

Answer 19

How do I change the mode?

Answer 20

if you're using a TI calculator, then you just hit the mode button (near the 2nd button)

Answer 21

what does the mode button look like?

Answer 22

what's your calculator type?

Answer 23

actually ignore that, we can just use google as a calculator

type in "sin(33 degrees)" without quotes to get this

https://www.google.com/search?hl=&q=sin%2833+degrees%29&sourceid=navclient-ff&rlz=1B3GGLL_enUS420US420&ie=UTF-8

Answer 24

nevermind I got it now :)

Answer 25

so 13*sin(33) is typed in like this (again without quotes)

"13*sin(33 degrees)"

and it spits out: 7.0803074552


https://www.google.com/search?hl=&q=13*sin%2833+degrees%29&sourceid=navclient-ff&rlz=1B3GGLL_enUS420US420&ie=UTF-8

Answer 26

so,

x = 13*sin(33)

x = 7.0803074552

Answer 27

I have another problem just like that accept the degree is 44 and the hypoteneuse is 9. but when I did it I got 6.21 and thats not answer choice @jim_thompson5910

Answer 28

Wait I got it nevermind lol sory @jim_thompson5910

Answer 29

oh glad you figured it out