4. Richard tosses a ball into the air. The function h(t) = -5t + 10t + 6 gives the approximate height h, in meters, of the ball t seconds after he tosses it. Does
the ball reach a height of 12 m?

yes

Step-by-step explanation:

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 %