Answer:

Step-by-step explanation:



Answer:
k<±36
Step-by-step explanation:
Δ<0 (no real roots)
b²-4ac<0
k²-4x12x27<0
k²-1296<0
k²<1296
k<±36
Answer:
6
Step-by-step explanation:
the answer would be 5.70588235294, but if you are rounding to the nearest tenth, its 6
Answer:
i think IV
Step-by-step explanation:
because of the picture
C and d
when x = 2 , f(x) = x^2 = 4
and
when x = 1 f(x) = 5