A ship leaves its home port and sails on a bearing of S 61° 50' E. Another ship leaves the same port at the same time and sails on a bearing of N 28° 10' E. If the first ship sails at 24 mph and
the second ship sails at 28 mph, find the distance between the two ships after 4 hours.

2

step-by-step explanation:

the answer is c. 23/3

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204