choose an expression for the following phrase. fifteen divided by unknown number. A) (3y)(3) B) y/15 C) 15/y D (5y)(3)

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Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.