exam
Maths Puzzle
Numerical Ability
Are lines L1 through (-2,1) and (0,3) and L2 through points (3,2) and (5,0) perpendicular?
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exam Other Question
Solve by completing the square. Thank you for your help.
4t^2=8t-1
answer choices:
a. 2 +or- square root 7 over 2
b. 1 +or- square 3
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2
c. 1 +or- square root 3/2
Please help.Solve each of the systems by substitution
5x-2y = -5
y - 5x = 3
Thank you.