1. A scale model of a building is 12 inches tall. The actual building is 120 feet tall. What is the scale factor of the model.
2 answers:
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Answer:
= - 2
Step-by-step explanation:
The n th term ( explicit formula ) for a geometric sequence is
= a
where a is the first term and r the common ratio
Here a = - 2 and r = 8 ÷ - 2 = - 4, thus
= - 2