mirandagray54 mirandagray54

02-07-2021
Mathematics

contestada

If the 5th term in a geometric sequence is 162, and the common ratio is 3. What is the first term in the sequence?

Respuesta :

reinhard10158 reinhard10158

07-07-2021

Answer:

2

Step-by-step explanation:

a2 = a1×3

a3 = a2×3 = a1×3×3

=>

an = an-1 × 3 =

[tex]a1 \times {3}^{n - 1} [/tex]

a5 = 162 = a1×3⁴ = a1×81

a1 = 162/81 = 2

Answer Link

Otras preguntas

The two largest lizards are the Gila Monster and the Chuckwalla. the average Gila Monster is 0.608 meter long. The average Chuckwalla is 0.395 meter long. How m

how to write 3.4 in word form and expanded form

Which African kingdom was so profitable from the trade that flowed through its borders that it was sometimes referred to as the ‘Land of Gold'? A. Mali B. Gha

Which of the following describes how you know what the sound of thunder means? A) Your eardrum detects the vibration of thunder. Sensory neurons relay that i

The single most important event in Jewish history is their exodus from _____. Assyria Persia Babylon Egypt

how can you write 37.025 written in Word form

Most mutations A. have no effect on an organism. B. are fatal to an organism. C. are helpful to an organism. D. are harmful to an organism.

Which sentence contains a misplaced modifier? a. She called for help from people on the corner at the top of her voice. b. Suddenly, a strong gust of wind tore

Write a paragraph of 50 words to describe what one of your colleagues is wearing.

Land reform and a focus on technology helped to revive Japan’s economy.