Answer:
2010.
Step-by-step explanation:
We have been given an exponential growth formula , which represents number of passengers traveling by airplane since 1990.
To find the year in which 900 million passengers will travel by airline, we will equate the given formula by 900 and solve for t as:
Take natural log of both sides:
Using property , we will get:
This means that in the 20th year since 1990, 900 million passengers would travel by airline.
Therefore, 900 million passengers would travel by airline in 2010.
Answer:
0
Step-by-step explanation:
25 cubic centimeters....
Hope this helps! all you had to do it multipley <span />
Answer:
Last choice. d.
Step-by-step explanation:
We are given the first term and the sixth term.
The first term is .
The sixth them is .
Let's solve for the common ratio, r.
Divide both sides by -9:
Take the fifth root of both sides:
So the common ratio is 4.