Which explicit function defines the sequence -8, 16, -32, 64, -128?
a) an = -8 - 2(n-1)

b) an= -8(-2)n-1

c) an= -2(-8)n

d) an= -2 - 8(n-1)

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

A, at (-2, 4), is 6 .of a'? (-8, 4) (-8, -2) (-2, -2) (-2, 4) b, at (-4, -7), isy-.of b'? (-4, 7) (4, -7) (4, 7) (-4, -7)

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25