Answer:
0.04
Step-by-step explanation:
1. 9/10 = 0.9 and 13/15 = 0.86
2. Subtract 0.9 and 0.86
3. You should end up with 0.04
Remember when a number goes like 0.86666666666 to use 0.86 or if it has 0.86666666667 to use 0.87 because you would be simplifying it.
 
        
             
        
        
        
Answer:
407.22 foot is the boat from the base of the lighthouse
Step-by-step explanation:
Given the statement: An observer on top of a 50-foot tall lighthouse sees a boat at a 7° angle of depression.
Let x foot be the distance of the object(boat) from the base of the lighthouse
Angle of depression = 
  [Alternate angle]
       [Alternate angle]
In triangle CAB:
To find AB = x foot.
Using tangent ratio:


Here, BC = 50 foot and 
then;

or


Simplify:
AB = x = 407.217321 foot
Therefore, the boat from the base of the light house is, 407.22'
 
        
             
        
        
        
CoComo no sabía que esto era la única cosa que trabajo perro
        
             
        
        
        
1. kilogram
2. pineapple
3. 2.2315
4. 627532
5. 1.71m
6. 840in^2
7.  41ft by 36ft; 154ft
8. 1,066ft^2
9. 6,556cm^2
        
                    
             
        
        
        
Answer:
10x+1
Step-by-step explanation: