The base of common logarithm is:
a) 0
b) 1
c) -1
d) 10
If x = 2, y = -3, evaluate x2 – 2y2 + x:
a) -12
b) 12
c) 2
d) -3
Perpendicular bisectors of a triangle are:
a) Congruent
b) Concurrent
c) Parallel
d) Perpendicular
