Answer:
8.06
Step-by-step explanation:
d=(−2−(−9))2+(3−7)2−−−−−−−−−−−−−−−−−−−√
d=(7)2+(−4)2−−−−−−−−−−√
d=49+16−−−−−−√
d=6–√5
d=8.062258
d=8.06