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Nat2105 [25]
3 years ago
13

The University of Ballygobackwards has three colleges: the College of Science, which has 12 staff, 8 of whom are female; the Col

lege of Engineering, which has 10 staff, 2 of whom are female; and the College of Arts, which has 20 staff, 9 of whom are female. Each college has a Dean, who is chosen from the staff in that college. What is the total number of ways these three Deans can be chosen?
Mathematics
1 answer:
IceJOKER [234]3 years ago
6 0

Answer:

just split the awnser

Step-by-step explanation:

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How do you break apart the factor 42 using place values
VLD [36.1K]

Let's break apart 42.

The 4 is in the tens. The 2 is in the ones.

                           Place Value starting from Thousands

                            Thousands  Hundreds  Tens  Ones

                            _________ ________ ____ _____

                                                                       4          2

So this is how we break up numbers using place value.

Hope this helps!

5 0
3 years ago
What Is 7 Rounded To The Nearest Tenth?
AnnyKZ [126]
I think that it is 7.0
5 0
3 years ago
Whats 20% of 40?<br> (find the percentage of the whole)<br> im also giving brainliest!!!
Nataliya [291]
0.2 x 40
=8
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6 0
3 years ago
Factorise 6+ 9x show working please
Stolb23 [73]
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5 0
3 years ago
In a sociology class there are 1414 sociology majors and 1111 non-sociology majors. 33 students are randomly selected to present
saul85 [17]

Answer: 0.4065

Step-by-step explanation:

Given : In a sociology class there are 14 sociology majors and 11 non-sociology majors.

Total students = 14+11=25

Number of  students are randomly selected = 3

Then, the number of ways to select 3 students from 25 students :-

^{25}C_3=\dfrac{25!}{(25-3)!3!}=\dfrac{25\times24\times23\times22!}{22!3!}\\\\=2300

Number of ways to select  at least 2 of the 3 students re non-sociology majors :-

^{14}C_1\times^{11}C_2+^{14}C_0\times ^{11}C_{3}\\\\=(14)\times\dfrac{11!}{2!(11-2)!}+(1)\times\dfrac{11!}{3!(11-3)!}\\\\=(14)(11\times5)+\dfrac{11\times10\times9}{6}\\\\=770+165=935

The probability that at least 2 of the 3 students selected are non-sociology majors will be :-

\dfrac{935}{2300}=0.40652173913\approx0.4065

8 0
3 years ago
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