A ball is thrown downward from the top of a 140-foot building with an initial velocity of 15 feet per second. The height of the ball h after t seconds is given by the equation h=-16t^2 - 15t + 140 How long after the ball is thrown will it strike the ground?
[___} sec
(Round to the nearest tenth as needed.)

idk

step-by-step explanation:

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

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 %