When a negative number is divided by another negative number, <span>sign of the quotient would be positive and always positive</span>
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And we're done.
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V = (4,-3,5)
w = (2,6,-1)
z = (3,0,4)
u = 0.5 v - w + 2 z = 0.5 (4,-3,5) - (2,6,-1) + 2 (3,0,4)
= ( [0.5 * 4 - 2 + 2 *3] , [0.5*-3-6+2*0] , [0.5*5--1+2*4] )
= ( 6 , -7.5 , 11.5 )
The correct answer is option D
Answer: 1/630
You have to use the keep change flip method to get the answer.
The expression 3r - 6 can be written as 3(r-2), because when you distribute 3(r-2) you get 3r -6. So they are equivalent.
