Answer:
in the picture above.
Step-by-step explanation:
I hope that it's a correct answer.
I hope this helps you
6. (-7).a^2+4.b^1+7
-42.a^6.b^8
Answer:
61
Step-by-step explanation:
to calculate the 20th term you use the formula
Tn=a+(n-1)d where a stands for the first term,n the number of terms and d the common difference.in this case the first term is 4 the common difference is 3 cause they were adding 3 to go to the next term.. therefore the solution will be:
Tn=4+(20-1)3
=4+19×3
=4+57
=61
the 20th term is 61
I hope this helps