2,2 is 3,4 away from 5,6 and 3²+4²=25=5² so CD=5
F(x) = x(x -1)
f(3) = 3*2 = 6
f(6) = 6*5 = 30
so f(f(3)) = 30 . . . . . selection A
Answer:
Maria did her job properly. Both gears are perpendicular.
Step-by-step explanation:
Recall that given vectors a and b, they are perpendicular if and only if
=0. If
. Then
.
IN our case a=(5,-1,2) and b) (1,-3,-4). So,

So both gears are perpendicular.
The answer shall be known as n=11
(☞゚ヮ゚)☞n = 11☜(゚ヮ゚☜)
Answer:
the answer is 5.5 thank me later