exam
Maths Puzzle
Numerical Ability
Are the sets of lines parallel, perpendicular, or neither:
Line 1 is through (-4,-7) and (1,3) and Line 2 is through (2,6) and (4,10)
Thanks in advance
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exam Other Question
In order to use the test statistic for the difference between two sample means both samples must have a population of at least 30 and the samples must be from dependent populations. Is this answer true or false?
4+2i/2-3i (2+3i/2+3i)
I didnt know how to show fractions other than this way. Sorry...But this is supposed to be two fractions and they are multiplying each other. Thanks