A pattern is made from four congruent squares
1 answer:
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Answer:
B. Geometric sequence.
Step-by-step explanation:
We have been given that Wanahton purified a portion of water with 900 grams of contaminants. Each hour, a third of the contaminants was filtered out.
The amount of contaminants remaining after each hour would be 2/3 of the previous hour amount as 1/3 of contaminants was filtered.
Since amount is not constant, therefore, the sequence would be geometric.
We know that explicit formula for geometric sequence is in form , where,
a = First term,
r = Common ratio.
For our given scenario and
, so our required formula would be:
Therefore, an explicit formula for the given geometric sequence would be .
Answer:
$151,257.12
Step-by-step explanation:
7.5% is the annual interest rate, the monthly interest rate is:
The amount (P) that must be deposited into an account at a rate 0.625% per month for 7 months in order to obtain $158,000 is given by:
$151,257.12 must be deposited into the account today.