PLEASE HELP!!! I HAVE NO CLUE ON WHAT TO DO!!!

Question

abhisar · Answer

You can use trignometric ratios to find the value of x

anonymous · Answer

sec 24 = x/18. solve for x

ayyookyndall · Answer

I know, but which one? @Abhisar

abhisar · Answer

$\sf \huge \frac{11}{x}=\frac{Base}{Hypotenuse}=Cos(24°)$

ayyookyndall · Answer

Where did you get the 18 from @phuong.tong ?

anonymous · Answer

sorry i meant 11

ayyookyndall · Answer

I got 10 when I tried that ratio. @Abhisar

anonymous · Answer

cos24 = 11/x ---> xcos24 = 11 ---> x = 11/cos24

abhisar · Answer

Cos (24°)=0.91

ayyookyndall · Answer

How does it equal 0.91? @Abhisar

abhisar · Answer

You can use Tables to find out the value of any trigonometric ratio.

ayyookyndall · Answer

Okay. So I am still confused. I tried the ratio you gave me and I got 10
10 isnt correct because the hypotenuse has to be bigger than 11

abhisar · Answer

You are doing it wrong,

11/x = 0.91

=> x = 11/0.91

ayyookyndall · Answer

Where did we get the 0.91 from? @Abhisar

abhisar · Answer

That's the value of Cos(24°)

abhisar · Answer

PS: Please leave and re-enter the post if you are seeing question mark within the black diamonds.

ayyookyndall · Answer

Sorry for asking so many questions, but how did you get it value of cos?
What did you do?

abhisar · Answer

You will  have to use log tables i order to find the value of angles like 24°.

ayyookyndall · Answer

Okay. Thank you so much!! :)

abhisar · Answer

Welcome ^_^