C. 3/4 is the right answer
        
             
        
        
        
Answer:
"D"
if you multiply by Conjugate 
the denominator would end up A^2 - b^2
the answer has 25 - 10x 
that is D
Step-by-step explanation:
 
        
             
        
        
        
In order for two triangles to be similar, there must be 2 pairs of congruent angles. Since two angles of triangle PQR have different measures from two angles of triangle RST, it is impossible to have two pairs of congruent angles, so the triangles cannot be similar.
The answer is in bold type below.
<span>All
interior angles must be given to determine similarity. 
The triangles
are not similar. 
Similarity cannot be determined from the given
information. 
The triangles are similar.
</span>
        
                    
             
        
        
        
Answer:
yes it is
Step-by-step explanation:
that is a lap every 6 seconds .