Ask a New Question
Search
find the number of terms in an ap given that its first and last number are 13 and -23 respectively if the common difference is -9
1 answer
Since -23 = 13+4d, there are 5 terms.
So S5 = 5/2 (13-23) = 90
Ask a New Question
or
answer this question
.
Similar Questions
Find the number of terms of a geometric progression .find the number of terms of the series 2+6+10+14+18...that will give a sum
1 answer
The first and last terms of an a.p are 79 and 5 and it's sum is 814 find(a) the number of terms in the a.p(b)the common
2 answers
hich of the following best describes how you can determine the x-intercepts of a polynomial function without graphing?(1 point)
R
1 answer
3/4 of a number is 1/2. Find the number in the lowest terms... please show work I am confused
3 answers
more similar questions