19. The circumference of a circular part of a
cylinder is 88cm. Its height is 20cm.
Calculate the volume of the cylinder
A. 12320cm
B. 30.8cm
C. 3080cm
D. 1760cm

A] 12320cm³

Step-by-step explanation:

Formula for finding the Volume of a cylinder is:

We have to find the r (radius) from the circumference given, since the value of r is not given.

Circumference = 2r

88 = 2 × × r

r =

r = 14.005...cm

∴  r is 14.01cm.

Now that we have found the value of r, we can proceed to find the volume of the cylinder.

Volume =

= × × 20

= × 196.3 × 20

= 12334cm

(Since I've used the whole value of Pi (), my answer didn't specifically match any of the options, but it is closer to the A option, thus 12320cm³ is your answer)

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! )

i think asking google will you get the answer to that question