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What is the value of x?

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x =

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

How can you construct perpendicular lines and prove theorems about perpendicular lines

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?