Answer:
Step-by-step explanation:
Given
speed of cyclist A is 
speed of cyclist B is 
At noon cyclist B is 9 mi away
after noon Cyclist B will travel a distance of 6 t and cyclist A travel 4 t miles in t hr
Now distance of cyclist B from intersection is 9-6t
Distance of cyclist A from intersection is 4 t
let distance between them be z

Differentiate z w.r.t time



Put 
therefore 


Answer:
A
Step-by-step explanation:
68.54 + x = 76.7
-76.7 + 68.54 = 8.16
Answer:
i think its the . (x, y)→ (y, x)
Step-by-step explanation:
Answer: x-intercept is 11/4
Step-by-step explanation: 0 = -4x + 11 --> -11 = -4x --> 11/4 = x