Consider the following expression: (1 + x)^n.

a) use the binomial theorem to find the first four terms of this polynomial.
b) why is 1 + nx a good approximation of this expression when x is less than 1?

The john nash mall used 17,4000 kilowatt hours in may, with a peak load of 92 kilowatts. the demand charge is $5.95 per kilowatt, and the energy charge is $0.08 per kilowatt hour. the fuel adjustment charge is $0.017 per kilowatt hour. what is the total electricity cost for may?