hi i need help in f#.can anyone help me

A culture of 100 bacteria is started, and the number of bacteria will double every hour. In about how many hours will there be over 4,000,000 bacteria?

A culture of 100 bacteria is started, and the number of bacteria will double every hour. In about how many hours will there be over 4,000,000 bacteria?

Example:

A hybrid seed grower is experiencing trouble

with corn borer. A random check of 5000 ears

revealed the following: Many of the ears

contained no borer; some ears contained one

borer; a few had two borers; and so on. The

distribution of the number of borers per ear

approximate a poisson distribution. The grower

counted 3500 borers in the 5000 ears.

What is the probability that an ear f corn

selected at random will contain no borers?

What is the z-score for Confidence Interval of 97% and what is the formula to find it?

A  radioactive substance has a half life of 4years if it's  activity today is 200dps it's activity in 8years from today is what.

If 24% sample zinc,65 decays in 70 days what is the half life of the isotope

Accounting 

Two random variables X and Y have joint cdf given by:

FX,Y (x, y) =







0, x < 0, y < 0

x, 0 ≤ x ≤ 1, y > 1

y, x > 1, 0 ≤ y ≤ 1

xy, 0 ≤ x ≤ 1, 0 ≤ y ≤ 1

1, x > 1, y > 1.

(a) Find the joint pdf fX,Y (x, y).

(b) Find the marginal cdf FX(x) and FY (y).

(c) Find P(X < 3/4) and P(1/4 < X < 1/2, 1/2 < Y < 1).

What is 4x+y^2 when y=3 and x=2

Methyl isocyanide, CH3NC, isomerizes, when heated, to give acetonitrile (methyl cyanide), CH3CN.

CH3NC(g) → CH3CN(g)

The reaction is first order. At 230 oC, the rate constant for the isomerization is 6.3 x 10-4/s.

What is the half-life?

If 4g of a radioactive material of half life 10 days is spilled on the laboratory floor how long would it take to disintegrate 3.5g of the material 

how many minutes are there in a year (365 days)?

Show how you obtained the solution

How many minutes are there in a day? Show working for how you obtained the solution