You can calculate the difference/vector of both points:

then calculate the magnitude/length like pythagoras
Answer:
3520 yards
Step-by-step explanation:
1 mile in 1 hour.
In 2 hours he will cover 2×1= 2 miles
1 mile = 1760 yards
2 miles = 3520 yards
Answer:
The answer is -(29+3a).
Step-by-step explanation:
=2(3-4a)+5(a-7)
= 6- 8a +5a -35
= 6-35-8a+5a
= -29-3a
= -(29+3a)
<em>Hope</em><em> </em><em>it helps</em><em>.</em><em>.</em>
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