Answer:
perpendicular = 10.24 cm
Step-by-step explanation:
by pythagorus theorem,

( where, h = hypotenuse, b = base,
p = perpendicular )
so,
=》

=》

=》

=》

perpendicular = 10.24 ( root 105 )
Answer:
c
Step-by-step explanation:
Let f(x)=0, you'll get x=3 and x=-5, those are the x-intercepts of the function.
This is an impossible equation. If sqrt(x) = sqrt(x), and sqrt(x) + 2 = sqrt(x) + 12, then that would mean that 2=12, which is incorrect.