A hummingbird, represented by point H, is flying toward a tree that has a radius of 2 feet. The circle shown represents the circumference of the tree, with point C representing the center of the tree. When it is 8 feet from the center of the tree, the hummingbird's peripheral vision forms two tangents. Select the two locations that would need to be connected to construct the peripheral line of sight from the hummingbird's right eye. Then select the value that is the best approximation of the tangent length.

Identify the type of chemical reaction involved in each action.

Lee is creating a garden with the dimensions shown. he creates paths through the garden along , , and . which correctly compares the lengths of the paths? the path along is longer than the path along , and the path along is longer than the path along . the path along is longer than the path along , and the path along is longer than the path along . the path along is longer than the path along , and the path along is longer than the path along . the path along is longer than the path along , and the path along is longer than the path along .

The point where two air masses meet is called a