No, the longest side must be less than the sum of the smaller sides or else they won't connect (try it yourself with straw or something)
40+30>120
70>120
false, therfor they canonot be a triangle
Answer:
Step-by-step explanation:
=
- 2ab + 
Hope this helps
plz mark as brainliest!!!!!
B of course i think i hope
(13,infinity] hope this helps
The equation should be 7x^2 -x-9=0