Answer:
For a level of 0.0174 or more of nitrogen oxide, the probability of fleet is 0.01.              
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 0.02 g/mi
Standard Deviation, σ = 0.01 g/mi
Sample size, n = 81
We are given that the distribution of  level of nitrogen oxides is a bell shaped distribution that is a normal distribution.
Standard error due to sampling:

Formula:
 
We have to find the value of x such that the probability is 0.01
P(X > x)  
 
  
 
  
 
  
Calculation the value from standard normal z table, we have,  
 
 
For a level of 0.0174 or more of nitrogen oxide, the probability of fleet is 0.01.
 
        
             
        
        
        
The figure is a cuboid.
Hence, parallel edges to AH are BD, PY, and MK.
Hence, the answer is A and B.
        
             
        
        
        
Answer: 24cm²
Step-by-step explanation:
Let square with length 5cm be represented with A, and square with 7cm be represented with B.
Area of a square is L²
Square A will have an area of 5² = 25cm²
Square B will have an area of 7² = 49cm²
Total area between the two squares will be = Area of Square (B - A)
i.e.
Total Area = 49cm² - 25cm² = 24cm²
 
        
             
        
        
        
Answer:
D (I think)
Step-by-step explanation:
I used a right triangle calculator and that was the answer
Below is the process the calculator did, hope it helps.


 
        
             
        
        
        
Answer: A
Step-by-step explanation: when the ratios of apples to plums (9:15) is simplified, it is 3:5