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Mathematics, 13.01.2021 22:40 pablogamohunndo

Topic: Arithmetic and geometric progressions. 1. The term of the series -2,1,4,7,10 is:
a) 145
b) 295
c) 895
d) 595
2. If in a PA, the first term is -2, the term 200 is 396, then its difference (d) is:
A) 5
B) 2
C) 4
D) 3
3. In a PA the eighth term is 161, d = 2, so the first term is:

A) 3
B) -1
C) 2
D) 4
4. If in a PA, the last term is 289, the first is 13 and the difference d = 4, then the number of “n” terms is:
A) 70
B) 71
C) 69
D) 68
5. In the series: 1,4,7,10,… .the sum of the first 300 terms is:
A) 134850
B) 133950
C) 89850
D) 850
Help me please!!

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Answers: 3

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Topic: Arithmetic and geometric progressions. 1. The term of the series -2,1,4,7,10 is:
a) 14...

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