Is 3.
3×3=9
Hope this helps!
        
             
        
        
        
Answer:
yes , 33^2 + 56^2 = 65^2   and obtuse 
Step-by-step explanation:
<h2><u>Question 3</u></h2>
make use of the Pythagoras theorem
which is :
c^2 = a^2 + b^2
where c is the hypotenuse.
now put the values in the equation 
65^2 = 56^2 + 33 ^2 
the answer is :
<u>yes , 33^2 + 56^2 = 65^2</u>
<u></u>
<h2><u>Question 4</u></h2>
<u />
note if :
c^2 = a^2 + b^2 ----------- right
c^2 < a^2 + b^2------------ acute
c^2 > a^2 + b^2------------- obtuse 
hence :
16 + 30 > 38
therefore its : <u>obtuse </u>
 
        
             
        
        
        
I believe the answer will be t + 40 = race time
        
                    
             
        
        
        
Answer:  
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Work Shown:
Apply the following trig identity

Now let's rationalize the denominator

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As confirmation, you can use the idea that if x = y, then x-y = 0. We'll have x = tan(165) and y = -2+sqrt(3). When computing x-y, your calculator should get fairly close to 0, if not get 0 itself. 
Or you can note how

which helps us see that they are the same thing.
Further confirmation comes from WolframAlpha (see attached image). They decided to write the answer as  but it's the same as above.
 but it's the same as above.
 
        
             
        
        
        
Answer:
Slope is 35
Step-by-step explanation: