Answer:
B
Step-by-step explanation:
∠ACE and ∠ECB form a straight angle whose sum = 180°, hence
2x + 2 + 5x + 3 = 180
7x + 5 = 180 ( subtract 5 from both sides )
7x = 175 ( divide both sides by 7 )
x = 25 → C
Answer:
12-21+5=-4
Step-by-step explanation:
12-21=-9
-9+5=-4
If you want to multiply 2 binomials, take each term in the first set of parentheses and multiply it to every term in the second set of parentheses:
3h*(2h+m) = 3h^2+3hm
-2m*(2h+m) = -4hm-2m^2
Combine like terms: (3hm-4hm)
3h^2-hm-2m^2
Answer:
Step-by-step explanation:
substitute x = - y - 2 in 0.5x + y = 1
0.5(- y - 2) + y = 1
-0.5y-1+y=1
0.5y=2
y=4
x=- y - 2
x=-4-2
x=-6
Answer:
parallel
a quadrilateral can be a parallelogram only and only if pair of opposite sides are equal and parallel.
