Answer:
588200
Step-by-step explanation:
3% of 826,000 is 24780, 24780 x 10 years is 247800
826,000-247800= 588200
 
        
             
        
        
        
Answer:
x= 7 y= 9 (7,9)
Step-by-step explanation:
solve by using system if equations. multiply top answer by 2, giving u 2y=2x+4 and y=2x-5 subtract the equations. y=9 (the x cancels out) then put 9 in for y. 9=x+2. subtract 2. giving u 7. and now x =7
 
        
             
        
        
        
The standard deviation of the frequency distribution is 5.54
<h3>How to determine standard deviation?</h3>
The table of values is given as:
x     f(x)
0-3 13 
4-7  13 
8-11 10 
12-15 11 
16-19 0 
20-23 3
Rewrite the table by calculating the class midpoints:
x     f(x)
1.5 13 
5.5  13 
9.5 10 
13.5 11 
17.5 0 
21.5 3
Start by calculating the mean using:

This gives

Evaluate

The standard deviation is then calculated as:

So, we have:

Evaluate

Solve

Hence, the standard deviation is 5.54
Read more about standard deviation at:
brainly.com/question/15858152
#SPJ1
 
        
             
        
        
        
Answer:
The value of b is -42
Step-by-step explanation:
Parallel equations have identical or equal slopes. Given the form of the equation; y=5x+b and the point it passes through (8,-2) we determine the unknown value b by substituting x with 8 and y with -2. We solve the equation; -2 =5(8)+b to obtain b = -42