The expression x-4 will come out to be a negative integer. That means X <em>has to be </em>something that when 4 is taken away from it, the answer is still negative.
Let's try 5.
5-4 is 1. Is 1 negative? No, so that doesn't work.
4-4 is 0. 0 isn't negative either, so that doesn't work.
3-4 is -1. Is -1 negative? YES! Let's try it for 2 as well, just to be safe.
2-4 is -2. Still negative.
X can be anything less than 4.
The slope is 1.
Every time it goes up 1, it goes to the right 1.
The formula is 2 (pi)r
The diameter is a 27.4 which means the radius is half of that or 13.7.
So 2 (pi)r equals 27.4 (pi)
That should be your answer
Divide 7151 by 10 and u get 715.1 that is how many total tens. To check just do 715.1 x 10. You get 7151