Answer:
The explicit formula for a given geometric sequence is of the form

Step-by-step explanation:
Given sequence is 
Let
To find the common ratio r:



Therefore r=-3



Therefore r=-3
Therefore common ratio is -3
Therefore given sequence is geometric sequence.
The explicit formula for a geometric sequence is
, where common ratio is r.
From given sequence we are having r=-3
Therefore the explicit formula for a given geometric sequence is of the form 


Answer:
20 in³
Step-by-step explanation:
Volume of 300 pages:
10 × 8 × 3/4
When the no. of pages change, only the thickness of the book changes:
Volume = 10 × 8 × ¼
= 20 in³
To get the average you need to add all the numbers together and divide by the match number. So, 98+25+105+62+65=355. 355/5=71, therefore the average is 71
Answer:
Step-by-step explanation:
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