Answer:
D. 
Step-by-step explanation:
a line that is y= is always horizontal. 
 
        
             
        
        
        
Distance swam in 5 minutes = 85.4 yards
Since, 1 min = 60 seconds and 1 yard = 0.91 meter
5 minutes =  seconds
 seconds 
85.4 yards =  meters
 meters
So, Distance swam in 300 seconds = 77.7 meters
Now, we will use unitary method to determine the distance swam in 70 seconds.
Distance swam in 1 second =  = 0.26 meter
 = 0.26 meter
So, Distance swam in 70 seconds = 
= 18.2 meters
Therefore, the swimmer took 70 seconds to cover the distance of 18.2 meters.
 
        
             
        
        
        
9514 1404 393
Answer:
   13.8654599313 and -0.8654599313
Step-by-step explanation:
If one of the numbers is x, then the other is 13-x, and their product is ...
   x(13 -x) = -12
   x^2 -13x = 12 . . . . multiply by -1 and simplify
   x^2 -13x +6.5^2 = 12 +6.5^2 . . . . complete the square
   (x -6.5)^2 = 54.25
   x -6.5 = √54.25
   x = 6.5 +√54.25 ≈ 13.8654599313
and the other number is ...
   13 -x = 13 -13.8654599313 = -0.8654599313
The two numbers are 13.8654599313 and -0.8654599313.
 
        
             
        
        
        
Answer:
Yep
1. Click ask question at the top
2. type your question or add a picture
3. then click Ask
but you messed up in step 2 because you didn’t add a picture! Your Welcome
Step-by-step explanation:
 
        
             
        
        
        
Could you please formulate you answer better? So we can get a bette understanding