A shopping mall manager creates a parabola to predict the number of shoppers in a mall, where $x$ is the number of hours since 8 A. M. and $y$ is the number of shoppers in the mall. Write a function $f$ that models the number of shoppers in the mall over time. Then find the average rate of change in the number of shoppers over the interval in which the number of shoppers is increasing fx=?
The average rate of change is ? shoppers per hour

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.