# Sum of members

What is the sum of the first two members of the aritmetic progression if d = -4.3 and a3 = 7.5?

### Correct answer:

#### You need to know the following knowledge to solve this word math problem:

## Related math problems and questions:

- The sum

The sum of the first 10 members of the arithmetic sequence is 120. What will be the sum if the difference is reduced by 2? - Difference AP

Calculate the difference of arithmetic progression if the sum of its first 19 members Sn = 8075 and the first member is a_{1}= 20 - Fifth member

Determine the fifth member of the arithmetic progression, if the sum of the second and fifth members equal to 73, and difference d = 7. - Finite arithmetic sequence

How many numbers should be inserted between the numbers 1 and 25 so that all numbers create a finite arithmetic sequence and that the sum of all members of this group is 117? - Sum of GP members

Determine the sum of the GP 30, 6, 1.2, to 5 terms. What is the sum of all terms (to infinity)? - Three members GP

The sum of three numbers in GP (geometric progression) is 21 and the sum of their squares is 189. Find the numbers. - Series

Your task is express the sum of the following arithmetic series for n = 14: S(n) = 11 + 13 + 15 + 17 + ... + 2n+9 + 2n+11 - Sum of the seventeen numbers

The sum of the 17 different natural numbers is 154. Determine the sum of the two largest ones. - Geometric progression

In geometric progression, a1 = 7, q = 5. Find the condition for n to sum first n members is: sn≤217. - Find the sum

Find the sum of all natural numbers from 1 and 100, which are divisible by 2 or 5 - Sum 1-6

Find the sum of the geometric progression 3, 15, 75,… to six terms. - Three ints

The sum of three consecutive integers is 2016. What numbers are they? - GP - three members

The second and third of a geometric progression are 24 and 12(c+1), respectively, given that the sum of the first three terms of progression is 76. determine the value of c. - Sequence

Between numbers 1 and 53 insert n members of the arithmetic sequence that its sum is 702. - Sequence 2

Write the first 5 members of an arithmetic sequence a_{11}=-14, d=-1 - Consecutive numbers

Sum of ten consecutive numbers is 105. Determine these numbers (write first and last). - Octahedron - sum

On each wall of a regular octahedron is written one of the numbers 1, 2, 3, 4, 5, 6, 7 and 8, wherein on different sides are different numbers. For each wall John make the sum of the numbers written of three adjacent walls. Thus got eight sums, which also