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berniceallonce22
04.02.2020 •
Mathematics
What is the slope of the line on the graph?
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Ответ:
see, rise=0
run=infinity
0/infinity=0
slope is 0
Ответ:
No matter which we are dealing with a sequence. The number of coins doubles each time. So we have: 1, 2, 4, 8, 16, 32, 64, ...
This is called a geometric sequence. To "move" from one term (number) to the next we multiply by two. The number we multiply by (2) is called the common ratio (call it r).
If we call the first term
So the nth term is given by
If you are asked for the 64th term (the number of pennies on the last square) this is given by
If you are asked for the number of pennies on some other square you use that number (5 for the 5th square) for n instead.
The sum of the terms of a geometric sequence is given by
If you are asked for the sum of the first 5 squares then use 5 for n instead and so on.