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OpenStudy (iwanttomakearequest):
Let V=(8, -4) and W=(-4, 2). Which of the following is true?
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OpenStudy (iwanttomakearequest):
The x-component of V is 4. The y-component of W is2 V•W=40 V=-2W
OpenStudy (bmk614):
(x,y) W is (-4,2) The y-component of W is 2.
OpenStudy (iwanttomakearequest):
okay, so then A is wrong because x-component would be 8 for V, right?
OpenStudy (iwanttomakearequest):
Would D also be correct, since -4•-2 is 8 and 2•-2 is -4, giving (8, -4)?
OpenStudy (iwanttomakearequest):
Yep, answer was B and D
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