For 30 randomly selected Rolling Stones concerts the mean gross earnings is 2:59 million dollars. Assuming a population
standard deviation gross earnings of 0.51 million dollars, obtain a 95%
confidence interval for the mean gross earnings of all Rolling Stones
concerts (in millions). Interpret this confidence interval.

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

What is the vertex form of f(x) = x2 + 6x + 3

What is the 12th term of b(n)=-4-2(n-1)