## anonymous one year ago Can someone please check my answer... Thank you Use a trigonometric ratio to find the value of x. Round the answer to the tenths’ place. @Hero @pooja195

1. anonymous

2. anonymous

@ganeshie8 @Hero @dan815

3. anonymous

@iambatman @Michele_Laino @nincompoop

4. anonymous

@triciaal @Nnesha

5. anonymous

sorry for mass tagging i just really need help

6. Nnesha

and where is ur work ? check my answer

7. anonymous

using my calc i got 0

8. Nnesha

for which one ? and which ratio did you use for first question ?

9. anonymous

i got 0 for the 1st one

10. Nnesha

x can't be equal to zero that's hypotenuse which should be greater than other two legs

11. Nnesha

$\rm sin \rm \theta = \frac{ opposite }{ hypotenuse }~~~~ \cos \theta = \frac{ adjacent }{ hypotenuse } ~~\tan \theta = \frac{ opposite }{ adjacent }$

12. Nnesha

you should know one angle and one side to find 3rd one so now look at the first triangle which ratio would you use to find x ? sin? cos? ro tan ?

13. anonymous

id ont know what any of thse thing are

14. anonymous

oh btws im here but for some reason its showing up that im not

15. anonymous

|dw:1441730189861:dw|

16. Nnesha

|dw:1441730179826:dw|

17. anonymous

i know that is the hyp

18. Nnesha

so now $\rm sin \rm \theta = \frac{ opposite }{ hypotenuse }~~~~ \cos \theta = \frac{ adjacent }{ hypotenuse } ~~\tan \theta = \frac{ opposite }{ adjacent }$ you have to find hyp so which function would you apply ? given is an angle and adjacent side

19. Nnesha

so for this question given is adjacent side and we have to find hyp that's why you should use cos theta

20. Nnesha

$\huge\rm cos \theta = \frac{adjacent }{ hyp}$ substitute theta and adjacent by their value then solve for hyp