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:
-7
Step-by-step explanation:
Answer:
ph scale
Step-by-step explanation:
because I have to test the acid for my pool
Answer:
Pacific Ocean at a grand 63 million square miles
Step-by-step explanation:
Answer:number 3
Step-by-step explanation: