50 mph for 3 hours = 150 miles
70mph for 2.5 hours = 140 + 35 = 175
175 miles - 150 miles = 25 miles
The explicit formula for this geometric sequence 81, 27, 9, 3, … is aₙ = 81(1/3)ⁿ⁻¹. It has common ratio of 1/3 and first term of 81.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
A geometric sequence is in the form aₙ = ar⁽ⁿ⁻¹⁾, where a is the first term and r is the common ratio.
The geometric sequence 81, 27, 9, 3, … has common ratio:
r = 27/81 = 1/3
The explicit formula for this geometric sequence 81, 27, 9, 3, … is aₙ = 81(1/3)ⁿ⁻¹. It has common ratio of 1/3 and first term of 81.
Find out more on equation at: brainly.com/question/2972832
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He is correct but he might be doughting him self
Answer:
I think the answer is 1/9
Step-by-step explanation:
I did the equations by using a tree diagram to explain it but
hi im so sorry i can not help yo with this question hopefully someone else is smart enough to help u i wish u the best im so so so o so so so sorry sorry sorry sorry sorry sorry Step-by-step explanation:
