Last year, a study showed that the average atm cash withdrawal took 65 seconds with a standard deviation of 10 seconds. the study is to be repeated this year, but we need to determine the required sample size (n). then, you will use a random sample from this year to construct a confidence interval for the average (mean) time it takes to withdraw cash from an atm.

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)

Combine like terms to make a simpler expression 3z+z

Find the zeros of each function. f(x) = 6x^2 - 7x - 20