For your second question: so .
I have no idea on how to solve this problem. Please show me a step by step solution! The answer is 4000.Once the initial publicity surrounding the release of a new book is over, sales of the hardcover edition tend to decrease exponentially. At the time publicity was discontinued, a certain book was experiencing sales of 25,000 copies per month. One month later, sales of the book had dropped to 10,000 copies per month. What will the sales be after 1 more month?
And also need assistance with the following question...
Find if and .
Here's what I did...
x
...and textbook answer is 400.
How did you get that?? If you take a look at the first two lines you can see that it just can be true. (It would mean that ..) I suppose that you meant in the third line, then it would at least come from the line above and the other two lines would come from that...
Do you understand the solution?