meredith48034
meredith48034 meredith48034
  • 15-04-2020
  • Mathematics
contestada

find a formula for a geometric sequence that begins with 7, 35, 175,...

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find a formula for a geometric sequence that begins with 7 35 175 class=

Respuesta :

amna04352
amna04352 amna04352
  • 15-04-2020

Answer:

b

Step-by-step explanation:

a = 7

r = 35/7 = 5

a × r^(n-1)

7 × 5^(n-1)

Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 15-04-2020

Answer:

b bn = 7 (5)^ (n-1)

Step-by-step explanation:

First we need to find the ration

Take the second term and divide by the first term

35/7 = 5

The formula for the sequence is given by

an = a0 (r) ^(n-1)

where a0 is the first term, r is the ratio

an = 7 (5)^ (n-1)

Answer Link

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