Recent content by Piper Hiwatari

quadrillion Btu. Since the 1? Anti-derivative math problem? In 2007, US consumption of renewable energy was 6.8 quadrillion Btu. Since the 1960s, consumption has been growing at a rate in quadrillion Btu's per year) given by f'(t)= 0.004t + 0.062 where t is years after 1960. Find f(t) &...