exam
Maths Puzzle
Numerical Ability
Which of the following sets of vectors are linearly independent?
A) [0 0], [-3 2]
B) [6,-7]
C) [3,2,0], [4,-7,-8], [9,-6,5]
D) [-8,2,0], [9,6,0], [-7,-5,0]
E) [-9
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exam Other Question
Factor.
a^2 + 16a + 64
Please help with this problem. Thanks in advance.
Given:
A scientist was hired to determine which brand of toothpaste is more effective in preventing cavities in children. Thir