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:
second one from the top
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given:


Required:

SOLUTION:



Collect like terms


Answer:
A= 30, B= 20, C= 50
Step-by-step explanation:
Just took test
Answer:
(2,3 is dilated to 8,12 by a scale factor of 4)
Step-by-step explanation:
multiply 2,3 by numbers until it gets to 8,12, once you multiply by 4 you get 8,12 which means the answer is a scale factor of 4