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Mathematics, 27.11.2020 09:00 edjiejwi

8. Which term of the arithmetic sequence 4, 1, -2, -5, ... is -29? * A.9th term
B.10th term
C.11th term
D.12th term

This is a required question
9. What is the 6th term of the geometric sequence 2/25, 2/5, 2, 10, ...? *
A.25
B.250
C.1250
D.2500
10. The first term of an arithmetic sequence is 2 while the 18th term is 87. Find the common difference of the sequence. *
A.7
B.6
C.5
D.3
11. What is the next term in the Fibonacci sequence 1, 1, 2, 3, 5, 8, ...? *
A.13
B.16
C.19
D.20
12. Find the sum of the geometric sequence where the first term is 3, the last term is 46 875, and the common ratio is 5. *
A.58 593
B.58 594
C.58 595
D.58 596
13. Find the eighth term of a geometric sequence where the third term is 27 and the common ratio is 3. *
A.2 187
B.6 561
C.19 683
D.59 049
14. Which of the following is the sum of all the multiples of 3 from 15 to 48? *
A.315
B.360
C.378
D.396
15. What is the 7th term of the sequence whose nth term is *
Captionless Image
A.24/25
B.23/25
C.47/50
D.49/50
16. What is the nth term of the arithmetic sequence 7, 9, 11, 13, 15, 17, ...? *
A.3n + 4
B.4n + 3
C. n + 2
D.2n + 5
17. What is the nth term of the harmonic sequence 1/2, 1/4, 1/6, 1/8, ...? *
A.1 / (n + 1)
B.1 / (n2 + 1)
C.1 / 2n
D.1 / (4n - 2)
18. Find p so that the numbers 7p + 2, 5p + 12, 2p - 1, ... form an arithmetic sequence. *
A.-8
B.-5
C.-13
D.-23
19. What is the sum of the infinite geometric series 3/4 - 9/16 + 27/64 - 81/256 + ... ? *
A.3
B.1
C.3/4
D.3/7
20. Find k so that the numbers 2k + 1, 3k + 4, and 7k + 6 form a geometric sequence. *
A.2; -1
B.-2; 1
C.2; 1
D.-2; -1
21. What is the geometric mean between 18 and 162? *
A.50
B.52
C.54
D.56
22. What is the 10th term in the harmonic sequence 3/7, 3/11, 1/5, 3/19,...? *
A.3/17
B.17/3
C43/3
D.3/43
23. In the harmonic sequence, if a3 = 3/5 and a6 = 3/11, find a1. *
A.1
B.2
C.3
D.4
24. What is the harmonic mean between two positive numbers a and b? *
A.(a + b) / 2
B.2 / (a + b)
C.2ab / (a + b)
D.(a + b) / 2ab
25. What is the harmonic mean between 20 and 60 *
A.40
B.30
C.25
D.50
26. John Arvin is at the top of 50 feet building and he i going up to drop the ball into the ground. When the ball bounced, it reaches a height that is 3/5 of the previous height. What is the total distance traveled by the ball? *
A.50 feet
B.100 feet
C.150 feet
D.200 feet
27. Rose drives from house to her work at the speed of 55kph. Returning home, he speed decreases to 45kph. What is the average speed of Rose for the round trip? *
A.49.5 kph
B.50 kph
C.50.5 kph
D.51 kph
28. During a freefall, a skydiver jumps 16feet, 48feet, and 80feet on the first, second, and third fall, respectively. If he continues to jump at this rate, how many feet will he have jumped during the tenth fall? *
A.304
B.336
C.314 928
D.944 784
29. Twelve days before Christmas, Carl decided to give Nicole snow flakes according to the Fibonacci sequence. On the first day, he sent one snow flake, on the second day, two snow flakes, and so on. How many snow flakes did Nicole receive during the tenth day? *
A.10
B.55
C.89
A.144
30. In Makabago High School, suspension of classes is announced through text brigade. On stormy day, the principal announces the suspension of classes to two teachers, each of whom sends this message to two other teachers, and so on. Supposed that text messages were sent in five round, counting the principal's text message as the first, how many text messages were sent in all? *
A.31
B.32
C.63
D.64

plsss ineed your help po

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8. Which term of the arithmetic sequence 4, 1, -2, -5, ... is -29? * A.9th term
B.10th term

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