Answer:
x = - 9, x = 0, x = 7
Step-by-step explanation:
Given
 x(x - 7)(x + 9) = 0 ← in standard form
 x(x - 7)(x + 9) = 0 ← in standard form
Equate each factor to zero and solve for x
 x = 0 ⇒ x = 0
 x = 0 ⇒ x = 0
x - 7 = 0 ⇒ x = 7
x + 9 = 0 ⇒ x = - 9
 
        
                    
             
        
        
        
Answer:
42 cakes
Step-by-step explanation:
10+32=42 cakes
 
        
                    
             
        
        
        
1 1/4
Step-by-step explanation:
Use this to get answer for Fractions Cacluatorsoup. com
 
        
                    
             
        
        
        
Answer:
The amount of money separating the lowest 80% of the amount invested from the highest 20% in a sampling distribution of 10 of the family's real estate holdings is $238,281.57.
Step-by-step explanation:
Let the random variable <em>X</em> represent the amount of money that the family has invested in different real estate properties.
The random variable <em>X</em> follows a Normal distribution with parameters <em>μ</em> = $225,000 and <em>σ</em> = $50,000.
It is provided that the family has invested in <em>n</em> = 10 different real estate properties.
Then the mean and standard deviation of amount of money that the family has invested in these 10 different real estate properties is:

Now the lowest 80% of the amount invested can be represented as follows:

The value of <em>z</em> is 0.84.
*Use a <em>z</em>-table.
Compute the value of the mean amount invested as follows:

    
Thus, the amount of money separating the lowest 80% of the amount invested from the highest 20% in a sampling distribution of 10 of the family's real estate holdings is $238,281.57.
 
        
             
        
        
        
Answer:
Here, length is 8 in. Width is 4in. and height is (3+3+3)=9 in. Then use the formula.
A= 2wl+2hl+2hw
 = 2×4×8 + 2×9×8+2×9×4
 =280 inch²