alexmodersks3055
08.07.2019 •
Mathematics
The 10th term of a sequence is 35. the term to term rule is add three work out the fifth term of the sequence. ( provide an explanation)
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Ответ:
Solution
Here 10th term =35
Rule = Add 3 to get the previous term to get the next term.
This is an Arithmetic sequence, where the common difference (d) = 3
Let's take the first term = a
2nd term = a + d
3rd term = a + 2d
4th term = a + 3d
and so on.
10th term = a + 9d
The 10th term is 35. So 35 = a + 9(3) [d = 3]
Now let's find the value of a (first term)
35 = a + 27
a= 35 - 27
a = 8
We have to find the 5th term.
5th term = a + 4d
5th term = 8 + 4*3 = 8 +12 = 20
20.
Thank you. :)
Ответ:
37.69 (≈ 38 ft²)
Step-by-step explanation:
2πr = 30.77
r = 30.77 / (2 * 3.14) = 4.9
half of free-throw circle area: πr² / 2 = (3.14 * 4.9²) / 2 = 37.69 (≈ 38 ft²)