Answer:
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Step-by-step explanation:
 
        
             
        
        
        
Answer: About 63 in²
Step-by-step explanation:
<u>Area of circle = π · r²</u>
- r = radius length
- π ≈ 3.14
<u>Area of large pizza:</u>

<u>Area of small pizza:</u>

<u>Difference in area:</u>

 
        
             
        
        
        
Answer:
x = 20
Step-by-step explanation:
→ Remember how many degrees are on a straight line
180°
→ Set up an equation
2x + 70 + 3x + 10 = 180
→ Simplify
5x + 80 = 180
→ Minus 80 from both sides
5x = 100
→ Divide both sides by 5
x = 20
 
        
                    
             
        
        
        
Answer: 2.14 %
Step-by-step explanation:
Given : pH measurements of a chemical solutions have
Mean :  
Standard deviation : 
Let X be the pH reading of a randomly selected customer chemical solution.
We assume  pH measurements of this solution have a nearly symmetric/bell-curve distribution (i.e. normal distribution).
The z-score for the normal distribution is given by :-

For x = 6.74

For x = 6.76

The p-value =

In percent, 
Hence, the percent of pH measurements reading below 6.74 OR above 6.76 = 2.14%
 
        
             
        
        
        
N/30 the net amount is due within 30 days after the sales invoice date.
So the last day to pay the invoice is
May 31 st