Do you know the numbers a/b equals too
 
        
             
        
        
        
Answer:
Q 12 roots of the equation
 
∝ = 
β = 
no matter if u oppose the root 
(i) 2( )
) +2
+2 (
( )+2(
)+2(
(ii)( - 3 (
 - 3 ( )(
)( ) + (
) + ( ) =
) = 
Q 13  roots of equation 

the roots of the second equation are 
x1 = 1/3(-0.693) = -0.231
x2 = 1/3(1.443) = 0.481
the equation is 
(x+0.231)(x-0.481)=0

 
        
             
        
        
        
Answer:
m^2
Step-by-step explanation:
You only need the surface area, which means you will not use cubed (^3). But the surface area is two dimensions (length and width). SO you must use m^2.
 
        
                    
             
        
        
        
Answer:
2 hours
Step-by-step explanation:
given that the calorie burn rates are:
swimming: 400 cal / hour
rollerblading: 600 cal / hour
If he swims for 3 hours, he will burn:
400 cal / hour x 3 hours
= 1200 cal
Since his goal is 2400 calories, the number of calories that he has left to burn after swimming is:
2400 - 1200
= 1200 calories.
Number of hours of rollerblading to burn 1200 calories
= 1200 calories ÷ 600 calories per hour 
= 2 hours