16)
=(x+2)(x+1)
cause
(x+2)(x+1) = x^2 + 2x + x + 2
= x^2 + 3x + 2
answer
(x+2)(x+1)
Answer:
Step-by-step explanation:
Here the coefficients of this quadratic are a = 1, b = 6 and c = 4.
-b
The axis of symmetry is x = -------- , which here is x = -6/2, or x = - 3.
2a
Use the given quadratic to find the vertical coordinate of the vertex:
y = (-3)^2 + 6(-3) + 4 = 9 - 18 + 4 = y = -5.
The axis of symmetry is x = -3, and the vertex is (-3, -5).
Answer:
D
Step-by-step explanation:
Well, since t = time in air, we already know that it traveled 2 seconds.
H = height in meters, and H = 18
So, after 2 seconds the object is 18m in the air
So, option D
Answer:
B.
Step-by-step explanation:
Try solving:
13x - 5 = - 5 + 13x
13x - 13x = -5 + 5
0 = 0.
Therefore it is an identity.
We could make x any real value and the identity would hold.
X would be 4! Since there is a right angle the two sides making the right angle are even!