POSSIBLE POINTS: 20 (Maximum mark: 6]
Only one of the following four sequences is arithmetic and only one of them is geometric.
an = 1, 5, 10, 15, ...
Cn = 1.5, 3, 4.5, 6, ...
2...
(2)
1 2 3 4
1 1
bn =
dn = 2, 1,
2' 3' 4' 5"
(a) State which sequence is arithmetic and find the common difference of the sequence.
(b) State which sequence is geometric and find the common ratio of the sequence.
(c) For the geometric sequence find the exact value of the eighth term. Give your answer
as a fraction,
2
2

Find two rational expressions that have the difference of 2-n/n-4

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?