What is -4-9 i dont know what it is

-4-9 is -13

Step-by-step explanation:

This is because since you are subtracting 9 from -4 , you add the two as negatives instead, so it would be -13. <3

-13

Step-by-step explanation:

There is a very easy trick that always helps me with negatives but only when you are subtracting them. All you have to do it think about what the two numbers would add up to then add a negative sign in front of the answer. :3

answer: 180

step-by-step explanation:

12-2=10

20-2=18

10x18=180

. + λrh() e 1 1 2 4 4 4 4 4 3 4 4 4 4 4 + th−1(− s(x)2 dx ω + λrh−1() e 2 1 2 4 4

step-by-step explanation: