Answer:
standard form is use to make subtract and addition easy
Step-by-step explanation:
hope it helps
 
        
                    
             
        
        
        
 2x2-5x-3=0 
Two solutions were found :
 x = -1/2 = -0.500
 x = 3
Step by step solution :
Step  1  :
Equation at the end of step  1  :
(2x2 - 5x) - 3 = 0 
Step  2  :
Trying to factor by splitting the middle term
 2.1     Factoring  2x2-5x-3 
The first term is,  2x2  its coefficient is  2 .
The middle term is,  -5x  its coefficient is  -5 .
The last term, "the constant", is  -3 
Step-1 : Multiply the coefficient of the first term by the constant   2 • -3 = -6 
Step-2 : Find two factors of  -6  whose sum equals the coefficient of the middle term, which is   -5 .
        
             
        
        
        
Answer: 9/20 for rent = $558
1/2 for food implies= $620
Step-by-step explanation:
9/20 ×$1240= $558
While 
1/2 ×$1240= $620
 
        
             
        
        
        
Answer:
A AND D
B AND C
Step-by-step explanation:
If you change A into lowest terms it equals D
and if you cjange B into lowest terms it would equals C
 
        
             
        
        
        
Answer:
254.5 Inches Cubed
Step-by-step explanation:
Formula for Finding the Volume of a Cylinder: 
The radius is 3 inches.

The height is three times the radius. 
Multiply the radius by three to get the height.

The height is 9 inches. 
Use the formula to find the volume.

The exact volume is 81 inches cubed.
 inches cubed.
 ≈ 254.47
 ≈ 254.47 
254.47 ≈ 254.5
The volume of the cylinder should be about 254.5 inches cubed.