Ask a New Question

Asked by David

The 4th and 7th terms of GP are 16 and 2 respectively.Find; a)the first term b)the common ratio c)the sum of the first 3 terms.
3 years ago

Answers

Answered by oobleck
r^3 = 2/16 = 1/8
r = 1/2
a(1/2)^3 = 16, so a = 128
S3 = 128 (1 - 1/8)/(1 - 1/2) = 224

check: 128+64+32 = 224
3 years ago
There are no AI answers yet. The ability to request AI answers is coming soon!

Submit Your Answer


We prioritize human answers over AI answers.

If you are human, and you can answer this question, please submit your answer.

Related Questions

Key terms: Expression Terms Factors Coefficients Meaning - definition - picture - Example with... write the next terms two terms in the pattern 42, 49 39,46 <---- 38, 45 40, 48 I cant t... What are the next 3 terms for -5,10,-20 The sum of the first 20 terms of the linear sequence is 28 and the sum of the first twenty eight ter... . If the sum of m terms of an AP is the same as the sum of its n terms, show that the sum of its (m... The first two terms of a gp are 4 and 6 ,what is the third term The first and third terms of a g.p are 5 and80 respectively.what is the fourth term. Which of the following terms correctly describes the partnership between caregivers and families? A... the sum of the 1st 8 terms of an AP is 80 and the sum of the next 4 terms is 88. determine the AP? The second and fifth terms of a geometric progression(G.P. ) are 1 and 1/8 respectively find the fir...
Submit Your Answer

Question

The 4th and 7th terms of GP are 16 and 2 respectively.Find; a)the first term b)the common ratio c)the sum of the first 3 terms.

Ask a New Question
Archives Contact Us Privacy Policy Terms of Use