The mean is 26 and the MAD is 3.75
Answer:
x=-3
Step-by-step explanation:
If x=-3, then
x³+x²-2x+12=-27+9+6+12=-27+27=0
If this is true, then x+3 is a factor. So:
x³+x²-2x+12/x+3=x²-2x+4
So the factors of x³+x²-2x+12 are:
(x+3)(x²-2x+4)
((x²-2x+4) has no real roots)........
Answer: 3
Step-by-step explanation: just a regalar algebra equation but with a less than or equal sign
Answer:
Simplified= 7x+6 When x=3 the expression=27
Step-by-step explanation: