Answer:
He drive for 385 miles
Step-by-step explanation:
11hrs = 605 miles
 1hr = 55 miles
 7hr = 55 × 7
 = 385 miles
 
        
                    
             
        
        
        
Answer:
88.51 is the minimum score needed to receive a grade of A.          
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 73
Standard Deviation, σ = 11
We are given that the distribution of exam grades is a bell shaped distribution that is a normal distribution.
Formula:

We have to find the value of x such that the probability is 0.0793.
 
  
 
  
 
  
Calculation the value from standard normal z table, we have,  

 
  
Hence, 88.51 is the minimum score needed to receive a grade of A.
 
        
             
        
        
        
Answer:
The side length is multiplied by 6.
Step-by-step explanation:
The area of a square is A = s². Suppose the side is 8 inches. This means the area is A = 8² = 64.
If you were to multiply by 36, then it becomes 64*36 = 2,304. Since squaring gave the area, it's side length would be found using the reverse operation a square root. Take the square root of 2,304.
√2304 = 48
The side length changed from 8 to 48 which is a scale factor of 6. This means 8 * 6 = 48.