Given the graph y = sin(x^4):
is it:
1.) increasing or decreasing?
2.) concave up or concave down?

Base in your question where as to graph y = sin(x^4) and the best answer to that is the following:

y = sin (x^4) y' = 4 x^3 cos (x^4) y'(10) = 4000 cos (10000) cos 10000 = 0.17 > 0 ==> y' > 0 ==> increasing

I hope you are satisfied with my answer

We can translate the given statements into 800 < 180 and 1200 <210. We are asked in the problem to determine the distnace between them, that is the resultant force of the two vectors. We add usng a calculator in the complex mode, that is equal to 1934.62 < -161.93. Amswer is 1934 miles