Answer:
A) The first 4 terms of the sequences are: 
, 
, 
and 
.
B) An explicit formula for this sequence can be written as: 
C) A recursive formula for this sequence can be written as:
Step-by-step explanation:
A) You can find the firs terms of this sequence simply selecting an odd integer and summing the consecutive 3 ones:
(a.1)
B) Observe the sequence of odd numbers 1, 3, 5, 7, 9, 11, 13(...).
You can express this sequence as:
(b.1)
If you merge the expression b.1 in a.1, you obtain the explicit formula of the sequence:
(a.1)
(b.2)
(b.3)
(b.s)
C) The recursive formula has to be written considering an initial term and an N term linked with the previous term. You can see an addition of 8 between a term and the next one. So you can express each term as an addition of 8 with the previous one. Therefore, if the first term is 16:
(c.s)
Answer: 2x + 10i + 6
Step-by-step explanation:
The answer is 36t^2+4s^2
we cannot combine the t and s terms since they are differnet
we can only facotr
4(9t^2+s^2)
8 I think I don’t know the question you’re looking for.
<h3>
Answer: 61/85</h3>
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Explanation:
There are 170 million martians surveyed, note the "170" in the bottom right hand corner.
Of this total, there are 48 million who have completed 4 (or more) years of college. Refer to the bottom of the "4 or more" column.
This must mean that 170 - 48 = 122 million martians have not completed 4 or more years of college. This figure of 122 is effectively the sum of nearly everything in the bottom row, except for the 48 and the 170. In other words, 27+51+44 = 122.
We divide the values 122 over 170, and reduce fully, to get the answer we're after.
122/170 = (2*61)/(2*85) = 61/85
This can be thought of as "if we had 85 million people total, then 61 million of them did not complete 4 or more years of college".
Side note: 61/85 = 0.7176 = 71.76% approximately
