Acyclist accelerates from 0 to 20m/s in 10 seconds. what is her acceleration?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?