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rusak2 [61]
3 years ago
8

Evaluate. Let n = 2.Enter the answer in lowest terms. 

Mathematics
2 answers:
Naddik [55]3 years ago
6 0
Numerator:
8n+3n-7
= 11n-7

Plug n=2 in 11n-7, we have:
11*2-7= 15

Denominator:
6*2n-3(n-1)
= 12n-3n+3 (distributive property)
= 9n+3

Plug n=2 into 9n+3, we have:
9*2+3= 21

15/21
= (15/3) / (21/3)
= 5/7

The final answer is 5/7~
jok3333 [9.3K]3 years ago
5 0
First you do the top
8n+3n-7=8*2+3*2-7=16+6-7= 22-7=15
Then you found out the bottom
6*2n-3(n-1)=6*2*2-3(2-1)=6*2*2-3*1=6*4-3*1=24-3*1=24-3=21
15/21 is your answer.
Hope this helps! :)
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Answer:

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by observation

when n = 0, a_{0} = 1st term

when n = 1, a_{1} = 2nd term

.....

when n = x,  a_{x} = (x+1)th term

hence if we want to find the 48th term, n = 48 - 1 = 47

when n = 47, a_{47} = 48th term

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