Answer:
C.
Step-by-step explanation:
Answer:
the answer is (a) a//b
Step-by-step explanation:
perpendicular means that two lines that do not cross over each other.
w = 
collect the term in w together → ( subtract 2w from both sides)
y - aw - 2w = - 1 → ( subtract y from both sides)
- aw - 2w = - 1 - y → ( multiply through by (- 1) )
aw + 2w = 1 + y → ( take out w as a common factor )
w( a + 2)= 1 + y → ( divide both sides by (a + 2 ) )
w = 
Answer: 10u3 + 4u2 - 2u + 10
Step-by-step explanation:
( 4u3 + 4u2 + 2) + ( 6u3 - 2u + 8)
opening the bracket
4u3 + 4u2 + 2 + 6u3 - 2u + 8
collecting like terms
4u3 + 6u3 + 4u2 - 2u + 2 + 8
10u3 + 4u2 - 2u + 10