Question: i need help with this (28 marks) 52. Determine whether the sequence 1, 2, 4, 7, 11, 16, ... is arithmetic, geometric, or neither. Give

i need help with this

(28 marks) 52. Determine whether the sequence 1, 2, 4, 7, 11, 16, ... is arithmetic, geometric, or neither. Give reasons for your answer. (2 marks) 53. Find , for the following arithmetic sequence: 100, 92, 84. .... Then use to to find to. (4 marks) 54. Find t for the following geometric sequence: -60, 30, -15, .... Then use t to find tag- (4 marks) 55. A culture of bacteria has 20 cells in it. The number of cells doubles every 30 minutes. a) Write the first 5 terms of this sequence. (2 marks) b) Is this sequence arithmetic or geometric? Explain how you know. (2 marks) c) Write the general term for the sequence. (2 marks) d) Use your formula to determine the number of cells after 8 hours. (4 marks) 56. The 8th term of an arithmetic sequence is 25 and the 20th term is -I1. Find the first term of the sequence and the common difference and use these to write the general term. (8 marks)

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