Triangle ABC, with vertices A(5,-9), B(7,-3), and C(2,-4), is drawn inside a rectangle, as shown below.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

Which number completes the inequality? 2/3 < _ < 7/9