<span>3pi is an irrational number; the other options are not.</span>
        
                    
             
        
        
        
Answer: They signed it to end the Revolutionary War. They promised to recognise American independence and ceded territory east of the Mississippi River  to the U.S
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-10/3 is the answer
Step-by-step explanation:
Given are two complex numbers as

Recall Demoivre theorem as
(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)
Hence here we have sum of angles  as
A+B = 63+117 =180

=
Since sin180=0 and cos 180=-1
 
        
             
        
        
        
Answer:
12°
Step-by-step explanation:
a right triangle implies there is an angle that is 90°
another angle is 78°
the third angle is 180 - (90 + 78)  =  180 - 168  = 12°