Ok
y=mx+b
b=yintercept
that's all you need to know
ok so we just list the yintercepts then order them
10,0.5,3,-5,7,-12
arrange from least to greatest
-12,-5,0.5,37,10
so the order of the functions is
y=-5x-12
y=0.5x-5
y=-4.5+3
y=-2x+7
y=2.5x+10
It would be 2.9 hours because you would add 4 of the 39 minute intervals together and for the last interval if Brian ran extra 2 miles which would be 20 miles. You would have to divide the 39 minute interval by 2 since he ran an extra 2 miles to get 19.5 minutes for him to get his last 2 miles for his 18 mile jog. Then add the 4 intervals of 39 minutes along with the 19.5 minutes to get you a total of 175.5 minutes and if you were to convert that to hours and minutes it would be 2 hours and 55 1/2 minutes so technically it would be 2.9 hours. To find the 2.9 you would divided 175.5 by 60 since there is 60 minutes an hour to get the answer 2.925 unrounded, but rounded it would get you the final answer 2.9 hours.
Final answer: 2.9 hours.
We have an 180 degree line, so lets solve.
180 - 39 = 141
n = 141 degrees
Answer: N = 141<span>°</span>
This would be the difference of perfect squares.
x^2 - 9
(x - 3) (x + 3)