One​ year, the mean age of an inmate on death row was years. A sociologist wondered whether the mean age of a​ death-row inmate has changed since then. She randomly selects ​death-row inmates and finds that their mean age is ​, with a standard deviation of . Construct a​ 95% confidence interval about the mean age. What does the interval​ imply?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?