Which of the three sets could not be the lengths of the sides of a triangle {6,10,12} {5,7,10} {4,4,9} {2,3,3}

The triangle theorem which represents the relationship between sides is a-b<c<a+b

First you have four sets.

1) 10-6<12<10+6 => 4< 12 < 16 true

2) 7-5<10<7+5 = 2<10<12 true

3) 4-4<9<4+4 => 0<9<8 not true

4) 3-2<3<3+2 => 1<3<5 true

The set No 3 can not form triangle.

Good luck!!!

the probability is 0

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.