Find the sum of the first 8 terms of the following sequence. Round to the nearest hundredth if necessary.
32,
-16,
8, ...

63.75

Step-by-step explanation:

this is a geometric progression with a common ratio of -1/2

the formula for the sum of first n numbers is

Sn = (a1(1-r^n)) / 1 - r

so S8 = (32*(1 - 1/2^8)) / (1 - 1/2)

32*(255/256) / 0.5

Sn= 255 / 4 = 63.75

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation:

dalila is incorrect. the whisker on the left is very long, going all the way out to 5. the whisker goes from 5 to 30, so it has a spread of 25. the rest of the box plot values are closer together, so 5 is an outlier