Explain hot to find length kc on the attached diagram.

The correct answer is KC = 54

Step-by-step explanation:

From the given figure we can see that,

total length JN =  82 + 105 = 187

To find the length KC

From figure we can write,

KC = Total length - (JK + CN) = JN - (JK + CN)

JN = 187

JK =82 and CN = 51

Therefore KC = 187 - (82 + 51) = 187 - 133 = 54

The correct answer is KC = 54

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50