ERROR ANALYSIS (Example Video and see problem 4 on p.314 in the book) A student claims that - 4i is the only imaginary root of a quadratic polynomial equation
that has real coefficients.
a. What is the student's mistake? (2 points)
b. Write one possible polynomial that has the correct roots from part a in standard
form. (3 points)
See problem 4 on p. 314, and use the setup below to get started.

answer. d.289 hope that

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %