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tensa zangetsu [6.8K]
3 years ago
12

C 2/n=21 What is answer for it?

Mathematics
1 answer:
nekit [7.7K]3 years ago
4 0

Answer:

Step-by-step explanation:

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ANHL player's labor negotiating committee is to be selected from 8 player representatives from the Eastern Conference and 7 play
cestrela7 [59]

Answer:

21 / 143

Step-by-step explanation:

Given that:

Number of Eastern conference reps = 8

Number of western conference rep = 7

Probability of selecting 3 from Eastern reps and 2 from western reps

Probability = required outcome / Total possible outcomes

Total possible outcomes:

selection to be made = 3+ 2 = 5

Total Number of players = 8 +7 = 15

Total possible outcomes

Using combination formula :

nCr = n! / (n-r)!r!

15C5 = 15! / 10!5! = (15 * 14 * 13 * 12 * 11) / (5*4'3*2*1) = 360360 / 120 = 3003

Total possible outcomes = 3003

Required outcome :

8C3 * 7C2

8C3 = 56 ; 7C2 = 21

8C3 * 7C2 = 56 * 21 = 1176

required outcome / Total possible outcomes

= 1176 / 3003

= 21 / 143

6 0
3 years ago
The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm
Fed [463]

Answer:

Length = 15 cm, width = 12 cm, Perimeter = 54 cm

Step-by-step explanation:

The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm².

Length = 5x

Breadth = 4x

Area of rectagle,

A = bl

180 = 5x × 4x

180 = 20x²

x² = 9

x = 3

Length = 5x = 5(3) = 15 cm

Width = 4x = 4(3) = 12 cm

Perimeter of rectangel,

P = 2(l+b)

= 2(15+12)

= 54 cm

Hence, this is the required solution.

6 0
3 years ago
IMMEDIATE HELP PLS THANKS <33
Ksenya-84 [330]
Reflect across the y axis and moved through the translation x = 2
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A watermelon seed is 4mm long. How far would a line of 114 watermelon seeds stretch? Write your answer in meters.
Stella [2.4K]
Four hundred fifty six
8 0
3 years ago
A toy rocket is launched from the top of a 48-foot hill. The rockets initicial upward velocity is 32 feet per second and its hei
kozerog [31]

Answer:2.11

Step-by-step explanation:

3 0
3 years ago
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