In post-apocalyptic neverland, clean water is sold in "2-liter" bottles off the back of a truck that arrives every day. the arrival time is normally distributed with mean 2: 54 pm and standard deviation 24 minutes. the time it takes for the water to sell out is also normally distributed with mean 33 minutes and standard deviation 7 minutes. the price of a "2-liter" bottle fluctuates from day to day according to a normal distribution with mean 128 rubles and standard deviation 4 rubles. the amount of water in a "2-liter" bottle varies from bottle to bottle according to a normal distribution with mean 63.5 ounces and standard deviation 1 ounce. assume that all days, all times, and all bottles are independent.

on april 3, 2020, you buy four "2-liter" bottles of clean water. what is the probability that it costs you more than 500 rubles? give your answer to 4 decimal places.

0.7734

Step-by-step explanation:

The average in this problem is 128 and the standard deviation is 4.

We buy 4 bottles.  We want the probability that the cost is more than 500 rubles; this means the average of each bottle would be

500/4 = 125 rubles.  This is our X value.

Using the z score formula, we have

Using a z table, the area under the curve less than this is 0.2266.  We want the probability that the cost is more than this, which would be to the right; we subtract from 1:

1-0.2266 = 0.7734

- click here to get an answer to your question ✍ 75 i will mark one of the angles formed by two

step-by-step explanation:

answer: integers are just whole numbers: positive, negative, and zero.

i = {-∞, -2, -1, 0, 1, 2, 3, ∞}

let x = 1st integer

let y = 2nd integer

x = 3y + 17   {equation 1}

xy = -24         {equation 2}

substitute 3y+17 in place of x n equation 2

and solve for y.

(3y+17)y = -24

3y2 + 17y = -24

3y2 + 17y + 24 = 0

from quadratic equation:

y = [-17±√(172-4(3)(24))]/(2(3))

y = (-17 ±√1)/6

y = (-17+1)/6   or     y = (-17-1)/6

y = -16/6           or     y = -18/6

y = -2 2/3         or   y = -3

since we are dealing with

y = -3

x = 3y+17 = -9+17 = 8

the integers are -3, 8

step-by-step explanation: