Question:
A solar lease customer built up an excess of 6,500 kilowatts hour (kwh) during the summer using his solar panels. when he turned his electric heat on, the excess be used up at 50 kilowatts hours per day
.
(a) If E represents the excess left and d represent the number of days. Write an equation for E in terms of d
(b) How much of excess will be left after one month (1 month = 30 days)
Answer:
a. 
b. 
Step-by-step explanation:
Given
Excess = 6500kwh
Rate = 50kwh/day
Solving (a): E in terms of d
The Excess left (E) in d days is calculated using:

The expression uses minus because there's a reduction in the excess kwh on a daily basis.
Substitute values for Excess, Rate and days


Solving (b); The value of E when d = 30.
Substitute 30 for d in 



<em>Hence, there are 5000kwh left after 30 days</em>
Answer: 80
Step-by-step explanation:
We can use the formula
, where
are the lengths of the diagonals.
By the distance formula,

So, the area is 
D
Step-by-step explanation:
Based on the pricing per kilowatt energy set by the distributor/regulation in the jurisdiction, the due amount to be paid to the distributor may differ;
kW/h * price per kW = power bill
The power bill is also paid regularly such as monthly or annually and therefore will bear a due date.
Learn More:
For more on power bills check out;
brainly.com/question/1401925
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The answer is nonlinear. It goes in a sharp downward curve, whereas a linear function is a straight line.