Determine whether each sequence is geometric. If so, find the common ratio. 1. 3,9, 27, 81, ...
2. 4, 8, 16, 32, ...
3. 4, 8, 12, 16,
4.4,-8, 16,-32, ...
5.1, 0.5, 0.25, 0.125,...
6. 100, 30,9, 2.7, ...
7.-5, 0, 5, 10, ..
8. 64, -32, 16, -8,...
9. 1,4,9,16,

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28