moathalaskar
moathalaskar moathalaskar
  • 25-10-2020
  • Mathematics
contestada

What's the value of r (common ratio)
7, 21, 63, 189, ......
11)
A. 3
B. -3
C.
32
D.
Neither

Respuesta :

felixkings
felixkings felixkings
  • 25-10-2020

Answer:

[tex]3[/tex]

Step-by-step explanation:

[tex]the \: common \: ratio \: is \: 3 \\ i.e \: \frac{21}{7} = \frac{63}{21} = \frac{189}{63} = 3[/tex]

Answer Link
AerisLee
AerisLee AerisLee
  • 25-10-2020

The answer is A

I already wrote the steps and explanation in the image

Sorry for my broken English QAQ

Ver imagen AerisLee
Answer Link

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