The number of people with the flu during an epidemic is a function, f, of the number of days, d, since the epidemic began. The equation f(d) = 50 - ()" defines f.

a. How many people had the flu at the beginning of the epidemic? Explain how you know.

b. How quickly is the flu spreading? Explain how you can tell from the equation.

c. What does f(1) mean in this situation?

d. Does f(3.5) make sense in this situation?

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?

Which set of lengths could represent the sides of a triangle? a. 3, 7, 10 b. 4, 5, 10 c. 6, 8, 14 d. 12, 6, 7

3x = 729 solve for x plz . it's urgent. will mark