C I’m pretty sure hope this helps
Answer:
3
Step-by-step explanation:
because 3x3= 9 and 4x3=12 and 5x3=15
First, rewrite the equation so that <em>y</em> is a function of <em>x</em> :
(If you were to plot the actual curve, you would have both and , but one curve is a reflection of the other, so the arc length for 1 ≤ <em>x</em> ≤ 8 would be the same on both curves. It doesn't matter which "half-curve" you choose to work with.)
The arc length is then given by the definite integral,
We have
Then in the integral,
Substitute
This transforms the integral to
and computing it is trivial:
We can simplify this further to
Answer:
44 feet
If it takes the horse 44 feet per second, and it takes the cheetah 88 feet, the difference is 44.
So, the horse must be 44 feet ahead to be safe. Hope it helps!
I believe that the answer is 6. Feel free to check yourself but i think its 6