Maths – NCEA 2.7 Sequences – videos and notes to pass the exam
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| Achieved Questions | Click on the hyperlinks to watch the video |
|---|---|
| Question 1 | What is the 10th term for the sequence 1, 9, 17? |
| Question 2 | A successful salesman makes 18 sales in his first month and then increases the number of sales each month by 8. Over 10 months, how many sales were made? |
| Question 3 | Find the value of  |
| Question 4 | A company which exports books to the UK increases its exports by 8% each year. During the first year, it sells 600 books. How many books does it export in its first 9 years of operation? |
| Question 5 | Find the sum to infinity for the geometric sequence with first term 5 and ratio 0.19 |
| Question 6 | There are 3 red balls, 5 yellow balls and 2 blue balls in a box. What is the probability of picking up a red ball from the box? |
| Question 7 | In New Zealand, 17% of males like to play games, and 11% of males like to play golf. Assuming that males liking playing games and golf are independent, what is the probability of a New Zealand male liking both? |
| Question 8 | 45% of teachers like to make jokes to class while 24% of teachers like to sing but do not like to make jokes. What is the probability of meeting a teacher who do not like to make jokes and do not like to sing? |
| Question 9 | Maria bought a plant. The height of the plant was 20cm. Each week, the plant was 7% taller than it was the week before. Calculate the height of the plant at the beginning of the 5th week. |
| Question 10 | Cindy, an animal, was born on the first day of January. She weighed 2kg when she was a week old. Each week, she weighed 7% more than the previous week. How much did Cindy weigh when she was 9 weeks old? |
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