Assignment:
Q1. World annual natural gas consumption, N, in millions of metric tons of oil equivalent, is approximated by N= 1770 + 53t, where t is in years since 1990.
A. How much natural gas was consumed in 1990? In 2010?
B. Estimate the total amount of natural gas consumed during the 20-year period from 1990 to 2010?
Q2. Solar photovoltaic (PV) cells are the world's fastest growing energy source. Annual solar PV production, S, in megawatts is approximated by S = 277e0.368t , where t is in years since 2000. Estimate the total solar PV production between 2000 and 2010.
Provide complete and step by step solution for the question and show calculations and use formulas.