Answer:
8
Step-by-step explanation:
8 - 11 = -3 :)
Answer:
Step-by-step explanation:
7) 4*5 - 2*3 = answer
20-6 = 14
8) 5*4 - 2*(2*2) = answer
20 -8 = 12
Answer:
(-5, 7), (7, 5) and (1, -11)
Step-by-step explanation:
see attached for points and possible parallelograms, they distinguished by different colored lines
the 3 points are: (-5, 7), (7, 5) and (1, -11)
We have cos( x - y ) = cosxcoy + sinxsiny <=> cos ( π - x ) = cosπcosx + sinπsinx <=> cos ( π - x ) = (-1)cosx + 0sinx = -cosx;