For a monic quadratic (factor of 1 on
) we always add half the coefficient on the linear (
) term, so

Answer: 49/4


Answer: Original expression: 2x - 11 + 4x + 7 + 3(x-4)
Simplified: 9x - 16
Step-by-step explanation:
2x - 11 + 4x + 7 + 3(x-4) becomes 2x - 11 + 4x + 7 + 3x -12
Group like terms, then combine to simplify:
2x + 4x + 3x -11 + 7 - 12
2x + 4x + 3x = 9x
-11 -12 + 7 = =23+7= -16
Simplified expression: 9x - 16
Answer:
C.
Step-by-step explanation:
<D and <A are vertical angles.
Vertical angles are congruent.
Congruent means the same or equal.
Answer:
y = 114
Step-by-step explanation:
n + x = y
n - 20 = 85
n = 105
x=9
105 + 9 = 114