What is the ratio of -2,-4,-8,-16,...

Is the power produced directly proportional to the wind speed, give reasons for your answer?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)