A 25 foot ladder is resting against the wall. The bottom of the ladder is initially 18 feet from the bottom of the wall. The bottom is being pushed toward the wall at a rate of ft/sec. How fast is the top of the ladder moving up the wall after 9 seconds? a. Draw and label a diagram. b. Show all of the work done. c. State the answer in a complete sentence using standard written English.

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.