Answer:
 • c = √89 ≈ 9.434
 • A = arcsin(8/√89) ≈ 57.995°
 • B = arcsin(5/√89) ≈ 32.005°
Step-by-step explanation:
By the law of cosines, ...
 c² = a² + b² -2ab·cos(C)
Since c=90°, cos(C) = 0 and this reduces to the Pythagorean theorem for this right triangle.
 c = √(8² +5²) = √89 ≈ 9.434
Then by the law of sines (or the definition of the sine of an angle), ...
 sin(A) = a/c·sin(C) = a/c = 8/√89
 A = arcsin(8/√89) ≈ 57.995°
 sin(B) = b/c·sin(C) = b/c = 5/√89
 B = arcsin(5/√89) ≈ 32.005°
 
        
             
        
        
        
Answer:
2b - 14
Step-by-step explanation:
2(b – 7)
2b - 14
 
        
                    
             
        
        
        
Step-by-step explanation:
please mark me as brainlest
 
        
             
        
        
        
First you Change the mixed number to an improper fraction (14/3) then you simplify (1/4 X 7/3) and then you multiply 1/4 X 7/3 = 7/12 :)
        
                    
             
        
        
        
How long did she ride it for?
otherwise it would be 5.3 kph