Step-by-step explanation:
what was love What was this like? and who do you love
 
        
                    
             
        
        
        
Answer:
Given the expression:
1. 

we know:

then;

Therefore, the value of expression  is -16 i.e negative.
 is -16 i.e negative.
2. 

we know:


then;

Therefore, the expression  is 16 i.e Positive.
 is 16 i.e Positive.
3.

we know:

then;

Therefore, the expression  is 16 i.e Positive.
 is 16 i.e Positive.
 
        
             
        
        
        
Answer:
1.
a) 5cm
b) 16cm
c) 25cm
d) 124cm
2.
a) 4m
b) 6m
c) 10m
d) 26m
3.
a) 2km
b) 4km
c) 11km
d) 28km
Step-by-step explanation:
When you have a number and it tells you to round it to the nearest cm (m, km etc.), it means you just have to make it a whole number (integer) instead of a decimal by rounding it up or down.
To tell whether you round up or down, you look at the number after the decimal place and if it is under 5, you round down but if it is 5-9 you round up.
For example,
If we had 20.3 (not one of the questions) you would round it down to 20 because the 3 after the decimal place is smaller than 5.
However, if we had 24.7 you would have to round it up because the 7 is from 5-9.
Hope this helps :)
 
        
             
        
        
        
Answer:
4/9
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
 A ) y=-1/2x+2 
Step-by-step explanation:
since the equation is y=2x+4 and the points are (-2,3) and the line is perpendicular to that equation
y=-1/2x+b
enter the point (-2,3)
3=1+b
b=2
so 
y=-1/2x+2