A study by the department of education of a certain state was trying to determine the mean SAT scores of
the graduating high school seniors. The study found a
confidence interval for the mean score to be between
465 and 499. What is the margin of error on the
survey? Do not write on the margin of error.

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244