Question

( -5,4) + (-3,7) +4,5=...​

Answer 1

-5.4-3.7+4.5=-9.1+4.5=-4.6

Answer 2

(-5,4)+(-3,7)+4,5=

-(5,4+3,7)+4,5=

-9,1+4,5=-(9,1-4,5)=-4,6

по правилам сложения чисел с разнами знаками и отрицательных.

Answer 3

To add the given points, you simply add their respective coordinates together.

(-5, 4) + (-3, 7) + (4, 5) = (-5 - 3 + 4, 4 + 7 + 5) = (-4, 16)

So the sum of the three points is (-4, 16).