kristasearles kristasearles

22-02-2018
Mathematics

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7/x 11/x cross multiply x^2 = 77, square root of both sides x = sqroot of 77

My answer: D

8 7x 11x cross multiply x2 77 square root of both sides x sqroot of 77 My answer D class=

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jimthompson5910 jimthompson5910

22-02-2018

Correct. A shortcut is to multiply the values and apply the square root. Though your method is more thorough.

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