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  2. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

  3. K-5 (education) - Wikipedia

    en.wikipedia.org/wiki/K-5_(education)

    K-5 (pronounced "kay through five") is an American term for the education period from kindergarten to fifth grade. It receives equal amounts of criticism and support in the educational industry. It receives equal amounts of criticism and support in the educational industry.

  4. Project Learning Tree - Wikipedia

    en.wikipedia.org/wiki/Project_Learning_Tree

    Project Learning Tree (PLT) is an environmental education program for teaching children about trees and forests using hands-on activities. It was created in 1976, after passage of the first National Environmental Education Act in 1970 and celebration of the first Earth Day in 1970, raised the profile of environmental education in the United States.

  5. Lists of trees - Wikipedia

    en.wikipedia.org/wiki/Lists_of_trees

    Enterolobium cyclocarpum, a tree of the Caribbean Tamarindus indica, a tree in India. Trees portal; Ecology portal; Environment portal; Africa. Trees of Africa; List of Southern African indigenous trees and woody lianes; Americas. Trees of Canada; Trees of the Caribbean Basin; Trees of Northern America; Asia. Trees of Iran; Trees of Pakistan ...

  6. k-minimum spanning tree - Wikipedia

    en.wikipedia.org/wiki/K-minimum_spanning_tree

    Therefore, the k-minimum spanning tree must be formed by combining the optimal Steiner tree with enough of the zero-weight edges of the added trees to make the total tree size large enough. [2] Even for a graph whose edge weights belong to the set {1, 2, 3}, testing whether the optimal solution value is less than a given threshold is NP-complete.

  7. List of U.S. state and territory trees - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._state_and...

    1964 [50] South Carolina: Sabal palm: Sabal palmetto: 1939 [51] South Dakota: Black Hills spruce: Picea glauca var. densata: 1947 [52] Tennessee: Tulip-tree: Liriodendron tulipifera: 1947 [53] Texas: Pecan: Carya illinoinensis: 1919 [54] United States Virgin Islands: None [55] Utah: Quaking aspen: Populus tremuloides: 2014 [56] Vermont: Sugar ...

  8. Tree measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_measurement

    Tree height is the vertical distance between the base of the tree and the highest sprig at the top of the tree. The base of the tree is measured for both height and girth as being the elevation at which the pith of the tree intersects the ground surface beneath, or "where the acorn sprouted."

  9. If a tree falls in a forest and no one is around to hear it ...

    en.wikipedia.org/wiki/If_a_tree_falls_in_a_forest...

    The tree will make a sound, even if nobody heard it, simply because it could have been heard. The answer to this question depends on the definition of sound. We can define sound as our perception of air vibrations. Therefore, sound does not exist if we do not hear it. When a tree falls, the motion disturbs the air and sends off air waves.