The mission is to formulate the rule in finding the nth term.
Step-by-step explanation:
RULE ON ITEM 19:
The difference between 1 and 3 is 2, then the difference between 3 and 7 is 4 and the difference between 7 and 15 is 18. So we need to subtract 1 from 3 to get two, then add two, and lastly, multiply it by 2. The nth pattern is subtract, add and multiply the result by 2.
RULE ON ITEM 20:
The difference between 15 and 13 is 2, next, the difference between 13 and 11 is 2, then, the difference between 11 and 9 is 2, and lastly, the difference between 9 and 7 is 2. So the nth pattern is always ending at 2from the giving resultofsubtractingtwo numbers.
and
(Sorry for confusing explanation, but I hope it helps)
Answers & Comments
Answer:
19) 1, 3, 7, 15
20) 15, 13, 11, 9, 7
The mission is to formulate the rule in finding the nth term.
Step-by-step explanation:
RULE ON ITEM 19:
The difference between 1 and 3 is 2, then the difference between 3 and 7 is 4 and the difference between 7 and 15 is 18. So we need to subtract 1 from 3 to get two, then add two, and lastly, multiply it by 2. The nth pattern is subtract, add and multiply the result by 2.
RULE ON ITEM 20:
The difference between 15 and 13 is 2, next, the difference between 13 and 11 is 2, then, the difference between 11 and 9 is 2, and lastly, the difference between 9 and 7 is 2. So the nth pattern is always ending at 2 from the giving result of subtracting two numbers.
and
(Sorry for confusing explanation, but I hope it helps)
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