Answer:
23 chalkboards
Step-by-step explanation:
Given:
Mean length = 5 m
Standard deviation = 0.01
Number of units ordered = 1000
Now, 
The z factor =  
or
The z factor =  
or
Z = - 2 
Now, the Probability P( length < 4.98 )
Also, From z table the p-value = 0.0228
therefore,
P( length < 4.98 ) = 0.0228
Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
11 13 18 19 22 25 29 32 37 37 38
find the median (25)
with 11,13,18,19,22 find the middle for that (18) Q1
with 29,32,37,37,38 find the middle for that (37)Q3
Q3-Q1
37-18=19
 
        
             
        
        
        
Answer:
ab - ac + db - dc
Step-by-step explanation:
you distribute the variables inside the parenthesis 
 
        
             
        
        
        
The answer is 
C = 4 ÷ 1/5
        
             
        
        
        
Answer:
A
Step-by-step explanation:
From what we have , it is expected that the parent function is a v-shaped graph that starts from the origin 
The expected equation parent function should be;
y = |x|
Now, moving on, the transformed function is 1/2 of the parent function 
This shows a direct compression of the initial partner function 
So, it is expected that the transformed function is more compressed compared to the initial parent function 
so, the correct choice of answer here is first option