WebSn= n/2 (a1 + an) Find the sum of the first 100 terms of the arithmetic sequence: 1, 3, 5, 7, Á . We use the formula for the general term of a sequence to find a100 . Use the formula for the sum of the first n terms of a to find the sum of the 100 terms. Find the sum of the first 15 terms of the arithmetic sequence: 3,6,9,12, Á. WebFeb 11, 2024 · The recursive formula for geometric sequences conveys the most important information about a geometric progression: the initial …
Find the 9th Term 2 , 8 , 32 , 128 , 512 , 2048 , 8192
WebQ: The first 5 multiples of 16 after 0 are. A: The multiples of 16 are given by, 16×k, where k is an integer…. Q: If 6th term of GP is 9375 and its 4th term is 375.Find its 9th term. A: Click to see the answer. Q: The formula N= 3x² + 5x + 1 represents the number of households N, in thousands (i.e. if the number…. A: Click to see the answer. WebNov 13, 2024 · Find the ninth term of the geometric sequence, given the first term and common ratio. a1=1 and r=-1/3 - Brainly.com. 11/13/2024. Mathematics. Middle School. … oxbow boerne
Answered: What is first 5th term of a1= 5 and r=3 bartleby
WebIf the initial term of an arithmetic sequence is a 1 and the common difference of successive members is d, then the nth term of the sequence is given by: a n = a 1 + (n - 1)d. The sum of the first n terms S n of an arithmetic sequence is calculated by the following formula: S n = n (a 1 + a n )/2 = n [2a 1 + (n - 1)d]/2. WebA: Given: The first term =-2 Common difference =3 n=10 To determine: nth term of the sequence. Q: Find the 10th term of the geometric sequence in which a 1 =1 and r = 2.5. A: Click to see the answer. Q: Find the nth term of the arithmetic sequence with the given values. 2 %3D a = 5' 15 n=614. A: Given : a1 = 65d = 215n = 614. WebDec 3, 2024 · an = a1(r)^(n-1) where a1 = 1st term, r = the common ratio, n= the nth term. a5 = a1(r)^(4) = 2327. a9 = a1(r)^8 = 69. a1(r)^8/a1(r)^4) = 69/2327. r^4 = 69/2327. r = the fourth root of 69/2327 = about 0.415. a11 = a1(r)^10 = (2327^2/69)(69/2327)^2.5 = 69sqr69/sqr2327 = about 11.88. a1 = about 78477. a2 = about 32568. a3 = about 13515. … jeff atkinson lawyer