Answer:
The first term of the geometric series is 1
Step-by-step explanation:
In this question, we are tasked with calculating the first term of a geometric series, given the common ratio, and the sum of the first 8 terms.
Mathematically, the sum of terms in a geometric series can be calculated as;
S = a(r^n-1)/( r-1)
where a is the first term that we are looking for
r is the common ratio which is 3 according to the question
n is the number of terms which is 8
S is the sum of the number of terms which is 3280 according to the question
Plugging these values, we have
3280 = a(3^8 -1)/(3-1)
3280 = a( 6561-1)/2
3280 = a(6560)/2
3280 = 3280a
a = 3280/3280
a = 1
Answer:
4,500 x 5 = 22,500
4,500 divided by 5 = 900
4,500 plus 5 = 4,505
4,500 minus 5 = 4,495
Step-by-step explanation:
it is either one of those that u have to choose from good luck
Answer:
Step-by-step explanation:
easy
the baseball team must win 22 more games to win 60% of total games played in the season.
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we know that the team played 75 games and will play 45 more games.
1st step: 75 + 45 = 120
2nd step: find 60% of 120 which is 72
3rd step: 72 - 50 = 22
Answer:
11
Step-by-step explanation:
-15, -15, 7, 8, 11, 16, 17, 18, 18
find the middle number after numbers are in order
hope this helps :)