Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
The answer for B is 270. 
450 • 0.6 =270
        
             
        
        
        
Pythagorean Theorem is for triangles not circles. 
The equation of a circle is (x - h)² + (y - k)² = radius² where (h, k) is the center.
Plug in your given information and simplify.
(x - (- 1))² + (y - 2)² = (3)²
(x + 1)² + (y - 2)² = 9 is your equation. 
        
                    
             
        
        
        
The question is asking to calculate and round of the value in to the greatest non zero place and base on the said number, I would say that the answer would be from 0.64 to 1. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification
        
             
        
        
        
Answer:
Actual length of ship is  150  meters.
Step-by-step explanation:
As model ship is built to a scale of  
1 centimeter  : 5  meters and
length of model ship is  30  centimeters
Actual length of ship is  30
×
5
=
150  meters.