bartlebypp
bartlebypp bartlebypp
  • 10-05-2021
  • Mathematics
contestada

Please help me hurry!! 8

Please help me hurry 8 class=

Respuesta :

devishri1977
devishri1977 devishri1977
  • 10-05-2021

Answer:

r = 7

Step-by-step explanation:

[tex]a =5\\\\a_{3}=245\\\\a_{n}=ar^{n-1}\\\\a_{3}= 5*r^{2} \\\\5*r^{2} = 245\\\\r^{2}=\frac{245}{5}\\\\r^{2}=49 = 7^{2}\\\\r = 7[/tex]

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admitasubba admitasubba
  • 10-05-2021
R=7

Explanation I just calculate it
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