Entertainment for a scene in a movie, a sack of money is dropped from the roof
of a 600-foot skyscraper. the height of the sack above the ground in feet is given by h = -16t2 + 600, where t is the time in seconds. how long will it take the sack to reach the ground?
round to the nearest tenth of a second.

6.1 s  

Step-by-step explanation:

h = -16t² + 600

When the sack reaches the ground, h = 0.

   0 = -16t² + 600

16t² = 600

  t² = 600/16

  t² = 37.5

   t = 6.1 s

It will take 6.1 s for the sack to reach the ground.

the answer   is 200

step-by-step explanation:

this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.