Find the value of x. round your answer to the nearest tenth. sin 33 degrees=7/x

Usually, when calculating trigonometry, we have to use a calculator for this. 

The way to enter this in the calculator is basically first pressing the button for "sin". Next, your screen should have " sin( " shown. now enter 33. 
When your calculator has "sin(33)" appeared, click "=" or "exe" whatever your calculator shows the answer for. 

You should have 0.544639... 
Now, the way solve x, one trick I use is that if the unknown is the denominator, simply divide the numerator by the answer we just calculated. 
So, you can enter " 7 ÷ Ans " to your cal. 

Now, the result should be 12.852549...
And round this up to the tenth, 
your final answer should be 12.9

The formula to use is :

where the two coordinates are in the format (x1, y1) and (x2, y2)