exam Maths Puzzle Numerical Ability

write the pattern using exponents: 2,4,8,16...

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exam Other Question

1.which is the equation of the line is perpendicular bisector of the segment with endpoints (n,5) and (n, -3)
A)y=1
B)y=4
c)x=4
D)y=n

2.which are the coordinates of the vert Is the following trinomial a perfect square?

x^2 + 8x - 16

yes or no