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A Geometric progression X has a first term of 4a and its sixth term is 256. Another Geometric progression Y has a first term of 3a and its fifth term is 48. Find the: (i) First term of X (ii) Sum of the first four terms of X
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Arithmetic
The first, second and third terms of a geometric progression are 2k+3, k+6 and k, respectively. Given that all the terms of geometric progression are positive, calculate (a) the value of the constant k (b) the sum to infinity of
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The 3rd term of an Arithmetic Progression is 10 more than the first term while the fifth term is 15 more than the second term. Find the sum of the 8th and 15th terms of the Arithmetic Progression if the 7th term is seven times the
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math
The 3rd term of a geometric progression is nine times the first term.if the second term is onetwenty fourth the 5th term.find the 4th term. solution ar^2=9a r=sqr of 9 r=3.pls help me on how to get the first term(a)
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a geometric progression has the second term as 9 and the fourth term as 81. find the sum of the first four terms.?
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Mathematics
an exponential sequence (geometric progression) has first term x and common ratio x ,x≠1 write down the sum of the first n terms of this sequence (1a): write down the sum of the first n terms of this sequence (1b): xinfinity
asked by Same on June 4, 2020 
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the sum of first 8 terms of an arithmetic progression is 156.the ratio of its 12th term to its 68th term is 1:5.calculate the first term and the fifteenth term. please help this questions please.
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mathematics
the third terms of a geometric progression is 360 and the sixth term is 1215. find the sum of the first four terms....
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The sum of the first 10th term of an a.p is 255,the sum of the first 20 term is 1010.find the next 2020 term of the progression
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1. Find the 11th term of the geometric sequence 64, 32, 16, 8, … . 2. Find the 1st term of a geometric sequence with a 10th term 1024 and r = 2. 3. Find the sum of each infinite geometric series, if possible. a. 10 + 2 + 2/5
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Math
a geometric progression has a third term of 20 and a sum to infinity which is three times the first term. find the first term
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