Answer:
between 222 and 223 days 
Step-by-step explanation:
This relation includes the point (0, 2).
A proportional relation must include the point (0, 0).
This is not proportional, but it may be linear.
Points: (0, 2), (2, 20)
y = mx + b
20 = (20 - 2)/(2 - 0) × 2 + b
20 = 18/2 × 2 + b
b = 2
y = 18x + 2
When 4000 people know, y = 4000.
y = 18x + 2
4000 = 18x + 2
3998 = 18x
x = 3998/18
x = 222.111...
Answer: between 222 and 223 days 
 
        
             
        
        
        
Answer:
r = 10 cm
Step-by-step explanation:
r² = 8² + 6²
r² = 64 + 36 = 100
r = 10 cm
 
        
                    
             
        
        
        
Answer:
Rotation of 90° (CounterClockwise)	(x, y)	(-y, x)
Rotation of 180° (Both Clockwise and Counterclockwise)	(x, y)	(-x, -y)
Rotation of 270° (Clockwise)	(x, y)	(-y, x)
Rotation of 270° (CounterClockwise)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The radius is 1
Step-by-step explanation:
 
        
             
        
        
        
X is equal 3. to do this, you do reverse of order of operations. So this means that you would to the 'times 2' first by dividing 4 by 2 to make it 2. then, in the parenthesis, since there is a 'minus 1', therefore you are going to add 1+2 which equals three.  <span />