Answer:
√X2-X1+√Y2-Y1
=√7-(-9) +√-10-8
=√16 + √-18
=4 + -(√18)
=4 + (-3√2)
=-0.24
Step-by-step explanation:
by answering this you must use the distance formula and label -9 as X1 , 8 as Y1 and 7 as X2 , -10 as Y2 then you put X2-X1 in the same root sine do the same at Y2-Y1.
