Answer:
Step-by-step explanation:
Draw a picture!
You get a right triangle with hypotenuse = 20 ft and horizontal leg = 12 ft
Use the Pythagorean Theorem to find the length of the vertical leg:
vertical leg = √(20²-12²) = √256 = 16 ft
 
        
             
        
        
        
Answer:

We also know that for Wedneday we have two times tickets for adults compared to child so we have 

And using this condition we have:

And solving for X we got:

So then the number of tickets sold for child are 36
Step-by-step explanation:
For this problem we can set upt the following notation
X = number of tickets for child
Y= number of tickets for adults
And we know that the total revenue  for Wednesday was 831.60. So then we can set up the following equation for the total revenue

We also know that for Wedneday we have two times tickets for adults compared to child so we have 

And using this condition we have:

And solving for X we got:

So then the number of tickets sold for child are 36
 
        
             
        
        
        
Answer:
<h2>2.2</h2>
Step-by-step explanation:
Use the cosine law:

We have:

Substitute:
