I think it would be easier to covert the fractions to decimals here
-1.2 * 1 1/5 / 3/10
= -1.2 * 1.2 / 0.3
= -1.44 / 0.3
= - 4.8 answer
 
        
             
        
        
        
Answer:
r = 6
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
PR² = PQ² + QR² , substitute values
(r + 4)² = r² + 8²
r² + 8r + 16 = r² + 64 ( subtract r² from both sides )
8r + 16 = 64 ( subtract 16 from both sides )
8r = 48 ( divide both sides by 8 )
r = 6
 
        
             
        
        
        
Answer:
about -1
Step-by-step explanation:
0.9999999999 minus 2
 
        
             
        
        
        

change the mixed numbers to improper fractions and multiply the numerators / denominators
10  =
 = 
 ×
 ×  =
 =  = 1110
 = 1110 