For the vectors A 4 i 2 j 8 k and B 3i - Stephanie Redfern Saylor

Question 33 / 40: For the vectors A 4 i + 2 j + 8 k and B= 3i - 2 j - 7 k, where i, j, and k are unit vectors in a rectangular coordinate system, perform the following task. Calculate A • B.

A 54

B -48

C 48

D 44

E 12

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Mechanics I ME102

Author:

Stephanie Redfern

The Saylor Foundation

USA

Access: Public Instant Grading

Attribution: Stephanie Redfern, Ranjeet (Ron) Agarwala, and Dr. Steve Gibbs. Mechanics I. The Saylor Academy 2014, http://www.saylor.org/courses/me102/

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