chickenndle7634 chickenndle7634
  • 20-02-2018
  • Mathematics
contestada

Given the geometric sequence where a1 = 2 and r = √2 find a9

32
32√2
256
256√2

Respuesta :

dannielle
dannielle dannielle
  • 20-02-2018
a9=a1*r^8

a9= 2*V2^8=2*2^4=2^5

⇒ a9 = 32
Answer Link
RenatoMattice RenatoMattice
  • 16-05-2019

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

There is a geometric sequence:

where a₁ = 2

r = √2

We need to find a₉:

As we know the formula for "nth term ":

[tex]a_n=ar^{n-1}\\\\a_9=ar^{9-1}\\\\a_9=ar^8\\\\a_9=2\times (\sqrt{2})^8\\\\a_9=32[/tex]

Hence, First option is correct.

Answer Link

Otras preguntas

Please help me it is due tomorrow
Jennifer made 5 L if punch fit her party. Her brother made another 750 ml. If they combine the two batches, how many 180 ml servings would they have? Would ther
The Sly Fox outwitted the trusting their what are the adjectives
Who is the crea torno of Star Wars
If one chocolate bar makes three snores how many bars will you need to purchase to make 26 smores
the us president can check congress by
Food leaving the stomach moves into the
The first side of a triangle is 8 m shorter than the second side. The third side is 4 times as long as the first side. The perimeter is 26 m. Find the length
If (3,y) lies on the graph of y=-(2^x) then y =
How did the united states react to the japanese attack on pearl harbor?