Diana invested some money in a bank at a fixed rate of interest compounded annually. the equation below shows the value of her investment after x years:

f(x) = 400(1.01)x

what was the average rate of change of the value of diana's investment from the second year to the fifth year?

1.01 dollars per year
2.47 dollars per year
4.12 dollars per year
12.36 dollars per year

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625