Answer:
+1 is the distanse of the following point
Let the distance from the pole be x and the length of the shadow be s. Using the law of similar triangles, we have:
s/6=(x+s)/15
thus
5s=2x+2s
3s=2x
hence
ds/dt=2/3 dx/dt
but
dx/dt=4 ft per second
hence
ds/dt=2/3*4=8/3
The slope of the green line would be 1/2
Perpendicular lines have opposite and reciprocal slopes. This means we first have to take the -2 and make it opposite to its current sign (2). Now we can take the 2 and flip it as a fraction (1/2).
This gives us the slope
Definently false, it could be conditionally convergent
The difference is 21 dollars. Seriously though, what is the question and how is this high school math?