With respect to air safety, in which year between 1950 and 1976 did the highest number of air fatalities occur, and how many passengers were killed in that year?

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons