Answer:
The sum of the first 47 terms of the given series = 6016
Step-by-step explanation:
Given the sequence
13, 18, 23, ...
An arithmetic sequence has a constant difference 'd' and is defined by


As the difference between all the adjacent terms is the same.
so


Arithmetic sequence sum formula

Put the values








Thus, the sum of the first 47 terms of the given series = 6016
Answer:
X to the second power + 5x + 6
Step-by-step explanation:
distribute (X + 2) and (X + 3)
you should get X to the second power + 3x + 2x + 6
then you add like terms (3x + 2x)
then you should get X to the second power + 5x + 6
It’s easy pi is equal to 3.14 so your answer is c
4(9+7) = 36+28 = 64
open the parentheses, then simplify.
Find a common denominator that 8 and 3 can go into.. which is 24
5/8 = 1/3
15/24 - 8/24
7/24
Hope this helped