Circumference of circular path=pi*d^2/4
=44.156
length of light=1.45
light needed=44.156/1.45
=31 approx
Focus of a parabola:

where vertex (h,k) p is the distance from vertex to focus
<span>1)Consumption: 875 kWh / month
2) New rate:
- 7.5 cents / kWh for the first 600 kWh
- 13.0 cents / kWh the next 600 kWh
3) Calculation:
600 kWh * 7.5 cents/ kWh + (875 kWh - 600 kWh) * 13.0 cents / kWh.
4500 cents + 3575 cents = 8075 cents = $ 80.75, which rounded to the nearest dolar is $ 81.
Answer: option d. $81.
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Answer:
Yes it is a function
Step-by-step explanation:
Each input has only 1 output