Answer:
- b = 15
- c = 51
- c = 100
- b = 25.75
Step-by-step explanation:
Using the Pythagoras theorem equation:

Where 'c' is the hypotenuse and 'b' and 'a' the sides of the right triangle.
1) Here c = 17, a = 8 and b = ?
Then, using the above equation we can find the side b.
 
 
 
 
2) Here a = 24, b = 45 and c = ?  
 
 

3)  Here a = 28, b = 96 and c = ?
 
    
 
 
4)  Here a = 17, b = ? and c = 28
 
  

Just in the 4 case x is an altitude.
I hope it helps you!
          
 
        
             
        
        
        
R2(<span>cos2</span>ϕ−<span>sin2</span>ϕ)−2rcosϕ=0<span><span>r2</span>(<span>cos2</span>ϕ−<span>sin2</span>ϕ)−2rcosϕ=0</span>
<span><span><span>r2</span>cos<span>(2ϕ)</span>−2rcosϕ=0</span><span><span>r2</span>cos<span>(2ϕ)</span>−2rcosϕ=<span>0
Now </span></span></span> divide through by <span><span>r≠0</span><span>r≠0</span></span>
and get
<span><span>rcos<span>2ϕ</span>−2cosϕ=0</span><span>rcos<span>2ϕ</span>−2cosϕ=0</span></span>
or 
<span><span>r=2<span><span>cosϕ</span><span>cos<span>2ϕ</span></span></span></span><span>r=2<span><span>cosϕ</span><span>cos<span>2<span>ϕ</span></span></span></span></span></span>
 
        
        
        
Answer:
length= 9
width= 3
Step-by-step explanation:
x= width 
length = x+6
x+6+x+6+x+x=24
4x+12=24
take 12 from both sides
4x= 12
x=3
 
        
             
        
        
        
Answer:
the answer is C 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
B. isolate the  by using inverse operations.
 by using inverse operations.
Step-by-step explanation:
Hope this helps! Brainliest would be much appreciated! Have a great day! :)