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haylee1468
11.01.2020 •
Mathematics
The explicit rule for an arithmetic sequence is an=20/3 / 1/3 (n-1)
what is the value of the 89th term?
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Ответ:
An = 20/3 + 1/3 (n-1)
Replacing n with 89, we have:
An = 20/3 + 1/3 (89-1)
An =20/3 + 1/3 (88)
An = 20/3 +88/3
An =108/3
An = 36
The 89th term is 36.
Ответ:
the value of the 89th term is 36
Step-by-step explanation:
Given :![A_{n} =\frac{20}{3} +\frac{1}{3} (n-1)](/tpl/images/0451/2081/5aa90.png)
To Find : 89th term
Solution :
The general explicit rule for an arithmetic sequence is
D is the common difference
so, in given sequence :
n = 89
so, to find 89th term
using given explicit formula :
put n = 89
⇒![A_{89} =\frac{20}{3} +\frac{1}{3} (89-1)](/tpl/images/0451/2081/eb56c.png)
⇒![A_{89} =\frac{20}{3} +\frac{1}{3} (88)](/tpl/images/0451/2081/2a6bf.png)
⇒![A_{89} =\frac{20}{3} +\frac{88}{3}](/tpl/images/0451/2081/f0107.png)
⇒![A_{89} =\frac{108}{3}](/tpl/images/0451/2081/ed154.png)
⇒![A_{n} = 36](/tpl/images/0451/2081/92c17.png)
Thus, the value of the 89th term is 36
Ответ:
538,757
Step-by-step explanation:
Population=(current population)*(1+rate)^(year)
Population=(300000)*(1+5/100)^12=538,756.899 or 538,757. Love from Gauthmath