<span>Scientific notation is the way that scientists easily handle very large numbers or very small numbers. Scientific notation is written by writting a decimal number between 1 and 10 together with an exponent of 10.
Given

First, using distributive property of numbers, seperate the decimal numbers and the exponents of 10, we have

Because, scientific notation requires that the decimal number part be a number between 1 and 10, we move the decimal point 1 place foward and subtract 1 from the exponent of 10.
Therefore, </span><span>

in standard notation is

</span>
 
        
        
        
Answer:
1680 kwhr
Step-by-step explanation:
See attached for explanation.  I converted watt*hr to kW*hr by dividing by 1000.
Fans	Bulbs  
  40         100  
  50          60      W	
   10            6       hours/day	
20000	36000	W*hr/day	
  30          30	days/month	
600000	1080000    W*hr/month	
   600      1080   kWhr/month	
  	
Total =	1680	kWhr/month	
 
        
             
        
        
        
A set of ordered pairs is called a relation. The set of all first components of the ordered pairs of a relation is the domain of the relation, and the set of all second components of the ordered pairs is the range of the relation. :)
 
        
             
        
        
        
Answer: b)
Step-by-step explanation:
3^3 is equal to 27 exactly, but it asks for an approximate. 27.55 is near 27 so yea, there ya go ^