been a while since i looked at this subject so need help
4=<a<7
-5<b=<3
how many integer values can a.b take?
answer should be 55
but when i multiply -4 and 5 lower limit is 20 and higher limit is 3*7=21 so it makes 19+20=41.. how can it be 55? missing something here.... 41 wasnt even given in the answer choices
(didnt know how to write "greater than or equal to" sign, but i am sure you get the point)
4=<a<7
-5<b=<3
how many integer values can a.b take?
answer should be 55
but when i multiply -4 and 5 lower limit is 20 and higher limit is 3*7=21 so it makes 19+20=41.. how can it be 55? missing something here.... 41 wasnt even given in the answer choices
(didnt know how to write "greater than or equal to" sign, but i am sure you get the point)