Write an explicit formula, term of sequence HELP I DON’T UNDERSTAND here’s a picture:
2 answers:
Answer:
= 10n - 5
Step-by-step explanation:
There is a common difference d between consecutive terms, that is
d = 15 - 5 = 25 - 15 = 10
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 5 and d = 10 , then
= 5 + 10(n - 1) = 5 + 10n - 10 = 10n - 5
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If the only factors a polynomial are and itself, then that polynomial is prime.
so
If the polynomial has at least one root (one x-intercept) then the polynomial is not prime
Using a graph tool
<u>case 1) </u>
see the attached figure N 1
The polynomial has one root-------> the polynomial is not prime
<u>case 2) </u>
see the attached figure N 2
The polynomial has three roots-------> the polynomial is not prime
<u>case 3) </u>
see the attached figure N 3
The polynomial has zero roots-------> the polynomial is prime
<u>case 4)</u>
see the attached figure N 4
The polynomial has two roots-------> the polynomial is not prime
therefore
<u>the answer is</u>
------> is prime
Since we know that a jar of 300g of coffee cost 1.20 £, the only thing we need to do to find how much coffee you will get for 1 £ is divide the amount of coffee you can buy by the amount of money it cost. In other words divide 300 grams of coffee by 1.20£:
We can conclude that you can get a jar of 250 grams of coffee for 1£.
We can conclude that you can get a jar of 250 grams of coffee for 1£.