The same sample of 25 seniors from the urban school district with the mean and standard deviation n(450, 100). a 95% confidence interval for µ for the population of seniors with a margin of error of ± 25 is used. what is the smallest sample size we can take to achieve this same margin of error?

Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2