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earnstyle [38]
3 years ago
6

A group consists of fourfour men and eighteight women. threethree people are selected to attend a conference.

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
8 0
Take the combination of 1 man and 2 women
 =4 * 8C2 = 4*28 = 112 ways
The case of all men
= 4C3 = 4
The case of all women
= 8C3 = 56
The case of 2 men and 1 woman:-
= 8 * 4C2 =  8* 6 = 48

Total number of ways = 112 + 4 + 56 + 48 =  220 answer

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Can someone plzz help me with these 2 questions. thanks!
Deffense [45]

9514 1404 393

Answer:

  4. height: 5√3 cm; area: 25√3 cm²

  5. 30√2 ft ≈ 42.43 ft

Step-by-step explanation:

4. The height of an equilateral triangle is (√3)/2 times the side length, so is ...

  height = (√3)/2 × (10 cm) = 5√3 cm

The area is given by the formula ...

  A = 1/2bh

  A = 1/2(10 cm)(5√3 cm) = 25√3 cm²

__

5. The diagonal of a square is √2 times the side length, so the distance from 3rd to 1st base is ...

  (30 ft)√2 ≈ 42.43 ft

__

The length of the diagonal of a square is something you should be familiar with. If you're not, you can figure the distance using the Pythagorean theorem.

  d = √(30² +30²) = √1800 ≈ 42.43 . . . feet

6 0
2 years ago
Which of the following makes the most per hour?
Flura [38]
In order they make 20$/hr, 5$/h, 10$/hr, and 30$/hr.  The last one makes the most by far!
5 0
3 years ago
Cancel subscription
anzhelika [568]

Answer:

What do you want answered?

5 0
2 years ago
Read 2 more answers
Luis can do 78 up downs in 4 minutes. At this rate, how many
Svetllana [295]

Answer:

i have no clue, sorry

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The total number of books in the library is 1155.there are 20 times more nonfiction books than fiction books. How many fiction b
alekssr [168]
There is 20x more nonfiction than fiction so you do
20+1=21
so then to find out what \frac{1}{21} of 1155 is we do
1155÷21=55
so then we times 55 by 20 because there are 20x more nonfiction than fiction
55x20=1100
soo now we know there is
1100 nonfiction books and
55 fiction books
to check whether we are right we can do
1100=55=1155
we are right because there is 1155 books in the library
hope i helped
3 0
3 years ago
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