The arithmetic sequence a; is defined by the formula: Q1 =-3
Q; = 0;-1 – 5
Find the sum of the first 490 terms in the sequence.

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

Which statement explains the relationship between corresponding terms in the table?

Harold wrote this equation to model the level of water in a pool over time. the variable x represents time in hours. f(x) = 3,500 - 225x which statements about the situation are true? check all that apply. the water level is rising. the water level is falling. the initial level of water in the pool was 3,500 units. the initial level of water in the pool was 225 units. the pool was empty after 14 hours. the water was 2,600 units high after 4 hours.