The probability they will be wearing all navy is 25%-50%. Hope I could help! :D
He isn't right. He needs 1/6 cup of olive oil since 2/3 times 1/4 = 1/6
1, 4, 9, 16, 25, 36
1+3=4
4+5=9
9+7=16
16+9=25
25+11=36
Evidently, you can notice the pattern. The second number is always increasing by two. Therefore the nth term is n^2.
Û = (-1, -1, -1)
^v = (2, 3, -5)
^v - û = (2 + 1, 3 + 1, -5 + 1) = (3, 4, -4)
Half way from ^v to ^(v - u) = ((3 - 2)/2, (4 - 3)/2, (-4 + 5)/2) = (1/2, 1/2, 1/2)
Halfway from û to ^v = ((2 + 1)/2, (3 + 1)/2, (-5 + 1)/2) = (3/2, 2, -2)
The required vector ^w = ((3/2 - 1/2), (2 - 1/2), (-2 - 1/2)) = (1, 1/2, -5/2)
