Help I need this today!!

y = 9

x = 9√2

Step-by-step explanation:

Step-by-step explanation:

tan 45= y/9

1=y/9

cross multiply

y= 9

sin 45=y/x

but y= 9

sin 45 = 9/x

0.7071=9/x

cross multiply

0.7071x= 9

x= 9/0.7071

x= 9√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! )

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4