Find an equation for the perpendicular bisector of the line segment whose endpoints are (-4,-5)and (8,-9)

y = 3x - 13

Step-by-step explanation:

slope of line segment is -1/3 so a segment perpendicular to this would need a slope of 3

the midpoint for the segment is (2, -7); midpoint formula is [(+/2), (+/2)]

using slope of 3 and point (2, -7) we can plug into y = mx + b

-7 = 3(2) + b

-7 = 6 + b

b = -13

4 + 5 7/9= 9 7/9

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles