Now check your work by using the GeoGebra geometry tool to repeat parts A through D. Open and complete each step below. If you need help, follow these instructions for using GeoGebra. You will take a screenshot of your work when you are through, so be sure to clearly label your construction as you work. 1. Plot points A, B, and C, and draw a polygon, ΔABC, through the points.
2. Draw a line perpendicular to through point B.
3. Label the intersection of the line perpendicular to through B and point D.
4. Measure and display the slopes of and .
5. Display the equations of and in the Algebra margin.
6. Measure and display the lengths of and .
7. Calculate and display the area of ΔABC.

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb. the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.