3 years ago

Please help me hurry!! 8

2 answers:

7 0

Answer:

r = 7

Step-by-step explanation:

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

5 0

R=7

Explanation I just calculate it

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