Answer:
the answer you are looking for is B
 
        
             
        
        
        
Answer: 42.21 km
Step-by-step explanation:
We can solve this using trigonometry, since we have the following data:
 is the the angle of elevation
 is the the angle of elevation
 is the horizontal distance between the plane and the radar station
 is the horizontal distance between the plane and the radar station
 is the hypotenuse of the right triangle formed between the radar station and the airplane
 is the hypotenuse of the right triangle formed between the radar station and the airplane
Now, the trigonometric function that will be used is <u>cosine</u>:
 because
 because  is the adjacent side of the right triangle
 is the adjacent side of the right triangle
 
 
Finding  :
:
 
 
 
 
 
        
             
        
        
        
Answer:
4V = 3U
Step-by-step explanation:
The final cost of a sale item is determined by multiplying the price on the tag by 75%.
Let us assume that the final cost of the sale item is V and the price on the tag is given by U.
Then the equation that best describes the function that represents the situation is  
⇒ 4V = 3U  (Answer)
 
        
             
        
        
        
24 marbles in the first group
28 marbles in the second group
 
        
             
        
        
        
4 Times 3 equals 12 so add 12 three times that equals 36 cubes in the prism.