Find the 9th term of the geometric sequence 9, 27, 81,
1 answer:
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Given :
AT&T charges $350 to get a plan with them, plus $60 per month.
T-Mobile charges a $275 initial fee, plus $80 per month.
To Find :
Write an equation or inequality that can be used to determine the number of months it would take for T-Mobile to cost the same or more than AT&T.
Solution :
Money-time relation of plan AT&T :
Money-time relation of plan T-Mobile :
( Here, x and y are number of months )
Let, after t months would take for T-Mobile to cost the same or more than AT&T.
So,
Hence, this is the required solution.
Answer:
Option A) 2.5
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 46
Sample mean, = 50
Sample size, n = 25
Alpha, α = 0.05
Population standard deviation, σ = 8
First, we design the null and the alternate hypothesis
Formula:
Putting all the values, we have
Option A) 2.5