Without knowing anything about the sequence, this is impossible to answer. But suppose the sequence is arithmetic, in which case each term differs by some constant
:





Then we can write

and from the formula above, we see this means the 10th term in the sequence is
. But that's all the specific info we can gather about such an arithmetic sequence. If we set the first term to be some unknown
, then the sum of the first 19 terms in the sequence would be

If we knew one more term in the sequence, we could determine the value of
and derive the value of
(if the first term
is not immediately given), and then go on to find an exact numeric value for the sum.
While since Rajeev is already below the surface by 12.6 ft it’ll be negative (-12.6) and since he went down another 8.7 ft it’ll just be minus since he is still going under, so -12.6-8.7 will be your answer. :)
= -30a^5b + 12a^4b^3 + 6a^3b^2 + 10a^3b^2 - 4a^2b^4 - 2ab^3
= -30a^5b + 12a^4b^3 + 16a^3b^2 - 4a^2b^4 - 2ab^3
answer
B. -30a^5b + 12a^4b^3 + 16a^3b^2 - 4a^2b^4 - 2ab^3
Answer:
its peptide bond and water
Step-by-step explanation:
Two amino acids animated above are joined together by a PEPTIDE BOND and a form of a molecule of WATER in the process. Hope this helps Mate :)