Answer:
5
Step-by-step explanation:
rate of change = slope = 5
 
        
             
        
        
        
Answer:
220
Step-by-step explanation: it just is
 
        
             
        
        
        
Answer:
   (x, y) = (-0.6, 0.8)  or  (1, 4)
Step-by-step explanation:
Use the second equation to substitute for y in the first.
  (x -1)² +((2x +2) -2)² = 4
   x -2x +1 + 4x² = 4 . . . . . . . eliminate parentheses
   5x² -2x -3 = 0 . . . . . . . . . . subtract 4, collect terms
Now we can rearrange the middle term to ease factoring by grouping.
   (5x² -5x) +(3x -3) = 0
   5x(x -1) +3(x -1) = 0 
   (5x +3)(x -1) = 0
The values of x that make these factors zero are ...
   x = -3/5, x = 1
The corresponding values of y are ...
   y = 2(-3/5)+2 = 4/5 . . . . for x = -3/5
   y = 2(1) +2 = 4 . . . . . . . . for x = 1
The solutions are: (x, y) = (-3/5, 4/5) or (1, 4).
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A graphing calculator verifies these solutions.
 
        
             
        
        
        
41 Fahrenheit is 5 Celsius
        
                    
             
        
        
        
Answer:
d. We are 95% confident that the proportion of adults (ages 17-26) who attended college is between 53% and 59%.
Step-by-step explanation:
Confidence interval of a proportion p.
We build a confidence interval at the x% level from a sample.
With this, we can say that we are x% sure that the true population propotion is in the interval.
The 95% confidence interval is (0.53, 0.59). 
This means that we are 95% sure that the true population proportion is between 0.53 and 0.59.
So the correct answer is:
d. We are 95% confident that the proportion of adults (ages 17-26) who attended college is between 53% and 59%.