15 km = 15000 meters
2 short run days = 8500*2 = 17000 m
2 long run days = 15000*2 = 30000 m
30000 - 17000= 13000 m
He will run 13000 meters farther on his two long run days.
Start by dividing both sides by 2 to get
. Doing the math on the right, keeping in mind that logs have an unwritten base of 10, gives us
. Rewriting this in exponential form is
. That means that x = 8. Not negative, only positive.
The slope for the first one would be:
y2-y1/x2-x1, so replace those with the coordinates and you'll get:
-3-1/-7-(-7) => -4/0 so I guess the slope is zero
the slope for the second one would be:
-3-(-3)/5-(-4)=> 0/9 I think this one would be undefined.
Check to make sure, though!
Answer:
80 m/s
Step-by-step explanation:
