Geometry:
the vertices of quadrilateral efgh are e(-2, -1), f(1, 2), g(6, 0), and h(2, -2). find the scale factor if the image of efgh has vertices e’(-3, -3/2), f’(3/2, 3), g’(9,0), and h’(3, -3).

  3/2

Step-by-step explanation:

Every coordinate of E'F'G'H' is 3/2 times that of EFGH, so the image is 3/2 times the size of the original.

___

For example, E'x/Ex = -3/-2 = 3/2; E'y/Ey = (-3/2)/-1 = 3/2.

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! )

answer: -0.5 would be the most likley outcome

step-by-step explanation: