JazzyMathNerd JazzyMathNerd
  • 14-03-2018
  • Mathematics
contestada

Find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1024?

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 14-03-2018
The common ratio is 2, so the sum is
.. a1*(r^n -1)/(r -1)
.. = 4*(2^9 -1)/(2 -1)
.. = 4*511
.. = 2044

The sum of the sequence is 2044.
Answer Link

Otras preguntas

reações de combustão importantes para nossa sociedade Obs:para pesquisa de ciências
Convert 1.3 atm to mmHg
Vectors r, s, t, u, and v are shown on the graph. Which of the following vectors is equivalent to 3/4v (Image shown)
El triple de un número disminuido en cuatro
FIZYKA: PILNE NA JUTRO!
Escolha alternativa que apresenta a frase em que o uso de crase está incorreto de acordo com as regras da gramática normativas :
Which equation can be used to solve for x in the following diagram? 5x° 4x° Choose 1 answer: 4x 180+5x 4x = 5x 4x+5x=90 4x+5x=180
A data professional is always interested in learning new skills and gaining knowledge. they often seek out challenging assignments at work and professional deve
Write any two scopes for each area of home science
What is the volume of the solid figure? Enter your answer in the box.10 ft.3 ft.6 ft.2 ft.4 ft.4 ft.5 ft.​