What is the sum of the geometric sequence -4,24,-144 if there are 7 terms

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

The power generated by an electrical circuit (in watts) as a function of its current c (in amperes) is modeled by p(c)= -15c(c-8) what current will produce the maximum power?

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)