Your answer is in the picture above
Answer:
2x^2+6x+3
Step-by-step explanation:
answer : 2x^2+6x+3
Answer:
42 quarts
Step-by-step explanation:
Answer: HI = √97
Step-by-step explanation:
The explicit formula for calculating the sum is

The sum of the nth term of a sequence is expressed as;

a is the first term
d is the common difference
n is the number of terms
For the sequence 0 + 1 + 2 + 3 +...

Similarly for the sequence:
1 + 2+ 3 + 4+...

Taking the product of the sum to get the explicit formula for calculating the sum

Learn more here: brainly.com/question/24547297