Answer:
169.50
Step-by-step explanation:
Axis -b/2a=-12/2*3=-2
vertex(-2,-3)
You have to orginize them from smallest to largest, 'x' is the median so I put it in the middle:
3, 4, 10, x,15, 18, 21
That means 11-14 could be x.
Answer:
16mn
Step-by-step explanation:
Yes! The lengths of each side must be less than the sum of the other two lengths. It looks like this:
4+4>7
7+4>4
4+7>4
