A- (x,y) -> (x,-y) B- (x,y) -> (-x,y) C- (x,y) -> (y,x) D- (x,y) -> (y, -x)
1 answer:
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5 miles
using the formula
time = , then his distance can be calculated
+
= 1
+
= 1
= 1 ( multiply both sides by 30 )
6d = 30 ( divide both sides by 6 )
d = 5
He lives 5 miles from school