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yaroslaw [1]
3 years ago
5

I really need help with this please help me this is to turn in just one and a half hours please please help me please

Mathematics
1 answer:
alukav5142 [94]3 years ago
6 0

If you post the work, then we might be able to help

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Suppose we describe the weather as either hot ​(Upper H​) or cloudy ​(Upper C​). Answer parts​ (a) and​ (b) below.
Ket [755]

Answer:

{HH,CC,HC,CH}

Step-by-step explanation:

We are given that

H denotes hot and cloudy denotes C.

We have to find the  total possible outcomes for the weather on two consecutive days.

The possible cases in two consecutive days

Both days are hot=HH

Both days are cloud=CC

First day is hot  other day cloudy=HC

First day is cloudy other day is hot=CH

Total possible cases=HH,CC,HC,CH

Therefor, the total outcomes for the weather on two consecutive days={HH,CC,HC,CH}

4 0
3 years ago
PLS help timed! which graph represents the solution of y<x2-1 and x>y2-3?​
miv72 [106K]

Answer:

y minus 3 = 2x plus 1

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Plsss help I’ll give u brainlest and 10 points number 13 pls
yuradex [85]

Answer:

A

Step-by-step explanation:

I added 6.5 to the equation, found the mean, and it was 3.5.

8 0
3 years ago
Assume that the poisson distribution applies and that the mean number of hurricanes in a certain area is 7.2 per year.
SCORPION-xisa [38]
Part A:

The poisson distribution is given by 

P(x;\mu)=e^{-\mu}\cdot \frac{\mu^x}{x!}

Thus, given that <span>the mean number of hurricanes in a certain area is 7.2 per year.

The </span><span>probability​ that, in a​ year, there will be 6 hurricanes is given by

</span>P(6;7.2)=e^{-7.2}\cdot \frac{7.2^6}{6!} \\ \\ =0.000747\times \frac{139314.0695}{720} \\ \\ =0.000747\times193.492 \\ \\ =0.1445


Part B:

<span>In a 45​-year ​period, the number of years that are expected to have 6 ​hurricanes is given by 0.1445 x 45 = 6.5 years.


Part C:

The poisson distribution worked here because, the observed value of the number of years that hurricanes occurred in a 45 year period which is 6 is very close to the calculated value which is 6.5</span>
4 0
3 years ago
A 12-m3 oxygen tank is at 17°C and 850 kPa absolute. The valve is opened, and some oxygen is released until the pressure in the
sweet-ann [11.9K]

Answer:

Released oxygen mass: 15.92 kg

Step-by-step explanation:

ideal gas law : P*V=nRT

P:pressure

V:volume

T:temperature

n:number of moles of gas

n [mol] = m [g] /M [u]

m : masa

M: masa molar = 15,999 u (oxygen)

R: ideal gas constant = 8.314472 cm^3 *MPa/K*mol =

grados K = °C + 273.15

P1*V*M/R*T = m1

P2*V*M/R*T = m2

masa released : m1-m2 = (P1-P2) * V*M/R*T

m2-m1 = 200 * 10^-3 MPa * 12 * 10^6 cm^3 * 15.999 u / 8.314472 (cm^3 * MPa/K *mol) * 290. 15 K

m2-m1= 38 397.6 * 10^3 u*mol / 2412.44 = 15916.5 g = 15.9165 kg

3 0
3 years ago
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