29. The augmented matrix for a linear system in variables x, y, and z are given below. The augmented matrix is in reduced row-echelon form. Give the solution of the system.
1
0
LO
0 0
1 0
0 1
1
1
o]
(x, y, z)= (-...-)
X Х

(x,y,z) = (1,1,0)

Explanation:

|1 0 0 | 1 | r1 - r3 -> r1

|0 1 0 | 1 | r2 - r3 -> r1

|0 0 1 | 0 |

first row⬆️

second row:

third row rest the same

18

step-by-step explanation:

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! )