Answer:
A) 6.0
Step-by-step explanation:
First, total amount of hours, since average is sum of the numbers by how many numbers there is.
Day 1=8x2 hr
Day 2=6x1 hr 
Day 3=4x2 hr 
which is, 16+6+8=30
then divide 30 by how many days there is, which is 5 days.
30/5=6
 
        
             
        
        
        
Answer:
The discrimant of this equation is 144.
Step-by-step explanation:
First you have to move all the variables to one side to make the equation/expression into 0 by substracting 8x² to both sides :
9x² + 14x + 13 = 8x²
9x² + 14x + 13 - 8x² = 8x² - 8x²
x² + 14x + 13 = 0
It is given that the formula of discriminant is, D = b² - 4ac where a&b&c represent the number of the equation, ax²+bx+c = 0 :
x² + 14x + 13 = 0
D = b² - 4ac
 = 14² - 4(1)(13)
 = 196 - 52
 = 144
 
        
             
        
        
        
Y = kx - 8. The variable k can be any negative value.
        
             
        
        
        
In order to find the unit rate
in ft / sec of 300 yards / min.
We first have to elicit the conversion
values for each unit of measurement, this will allows us identify how much will
we multiply in order to get the goaled value. 
Conversion values:
<span><span>1.   
</span>1 yard = 3
feet</span>
<span><span>2.   
</span>1 minute =
60 seconds</span>
Solution:
<span><span>
1.   
</span>300 yards x
3 feet/1 yard = 900 feet</span>
<span><span>2.   
</span>1 minute x
60 seconds / 1 minute = 60 seconds</span>
Thus, 900ft/60sec
        
                    
             
        
        
        
The answer is 
5mn(KUASA DUA) -6gh(KUASA DUA) +2