325661denise 325661denise

15-07-2016
Mathematics

contestada

The second term in a geometric sequence is 50 . The fourth term in the same sequence is 112.5 . What is the common ratio in this sequence ?

Respuesta :

olemakpadu olemakpadu

16-07-2016

Geometric an = ar^(n - 1)

Second term =ar² ⁻ ¹ = ar = 50

Fourth term =ar⁴ ⁻ ¹ = ar³ = 112.5

ar = 50 ..........(a)

ar³ = 112.5......(b)

Equation (b)/(a)

ar³ / ar = 112.5/50

r² = 2.25

r = √2.25

r = 1.5

Common ratio = 1.5

Answer Link

Otras preguntas

What is this anwser? Thanks!

Who was David livingstone

What is one of the four basic principles of the 1628 Petition of Right?

The table needs to be cleaned. A. Te toca limpiar la mesa. B. Tengo que limpiar la mesa. C. Necesito limpiar las mesa. D. Hay que limpiar la mesa. E. Me toca li

You may not use the break statement in a nested loop True False

An architect created a scale model of Purdue University's new construction area. The scale model is 2 in to every 25 feet. Purdue's Bell Tower is 160 feet tall.

I need help putting this in corresponding factored form. I got two wrong but I’m not sure how to do it and show my work.

How do you find slope

Susan is 3 times as old as Paul and Paul is 3/2 times as old as Mary. What fraction of Susan's age is Mary? a) 3/8 b) 2/9

What is this anwser? Thanks!