X=y-2
2y=5x-17
Substituting for x into the second equation, we find
2y=5(y-2)-17
2y=5y-10-17
-3y=-27
y=9
So x=7
Thus, the two numbers are 7 and 9.
        
             
        
        
        
1 400 000 000 000 000 000 000 km =  1.4 * 10^21 km
 
        
             
        
        
        
Answer:
52 Sides
Step-by-step explanation:
Octagons have 8 sides so 3 x 8 = 24
Pentagons have 5 sides so 4 x 5 = 20
Trapezoids have 4 sides so 2 x 4 = 8
Add it all up and it equals 52 sides in total 
 
        
             
        
        
        
Answer:
 11.9 mm
Step-by-step explanation:
We can find d by applying the cosine rules.
d²  = 21² + 27² - 2(21)(27) cos (25)
d²  = 441 + 729 - 1027.75
d²  = 142.25
d = √142.25
d = 11.9 mm (nearest tenth)
 
        
             
        
        
        
Answer:
the answer is in the picture below
Step-by-step explanation:
