rubajoudah rubajoudah

03-10-2020
Mathematics

contestada

A geometric sequence has a first term of 3 and a fourth term of 81÷8.

Find the eighth term

Respuesta :

MathPhys MathPhys

03-10-2020

Answer:

6561 / 128

Step-by-step explanation:

The nth term of a geometric sequence is:

a = a₁ (r)ⁿ⁻¹

The first term is 3, and the fourth term is 81/8.

81/8 = 3 (r)⁴⁻¹

27/8 = r³

r = 3/2

The eighth term is therefore:

a = 3 (3/2)⁸⁻¹

a = 6561 / 128

Answer Link

Otras preguntas

What number is equivalent to 13/2

the graph below shows the distribution of students grades on their last math test. Based on the Empirical rule, what percent of students made.. *btwn 80 n 85 o

What is the solution: (9x+2)(4x^2+35x-9)=0

What number is equivalent to 13/2

Please answer:If a stadium holds 60000 people.1. If the stadium is 2/3 full, how many people are there?2. If the stadium is 3/4 full, how many people are there?

State whether the following statements are true or false. Justify.(i) For an arbitrary binary operation * on a set N, a * a = a , for all a * N.(ii) If * is a

Where did the Greeks believe that most gods lived

where will you find maximum rate of evaporation - ocean, pond or an aquarium? Give reason to support your answer.

in a parallelogram one angle is 9 times the size of another. find the measures of the angles

india takes the two hour train ride from minneapolis to chicago every dummer to visit her grandparents. The train traveled 44 7/16 (thats a mixed number) mile