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Trava [24]
2 years ago
10

From a club 25 people in how many ways can a group of five members be selected to attend conference? A group of 5 members can be

selected to a conference in how many ways
Mathematics
1 answer:
IgorLugansk [536]2 years ago
8 0

Answer:

²⁵C₅ = 53130

Step-by-step explanation:

number of people in the club = 25

number of people to be selected in the group to attend conference = 5

number of ways of selecting this group from 25 people is same as selecting 5 objects from 25 distinct objects = ²⁵C₅ (Selection)

= \frac{25!}{5!(25-5)!}

= \frac{25!}{5!(20)!}

= 21×22×23×5

= 53130

∴ <u>Number of ways of selecting this group from 25 people = 53130</u>

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Hank spend 76% of his monthly salary and saves $270 find his monthly salary
Dimas [21]

Answer:

f $270= the remaining 24% then you want to do 270/24=11.25 Then you want to multiply that by 76 and you will get $855

So $270+$855=24%+76% So his monthly salary was $1,125

If you are still confused do it in reverse! 1,125/100=11.25

11.25•24=270 & 11.25•76=855

270+855=1,125

Step-by-step explanation:

the guy below copied me

4 0
2 years ago
Find the area of the circle. Leave your answers in terms of pi.
Savatey [412]

Answer:

49pi m^2

Step-by-step explanation:

Area of circle=pi r^2

D=2r=14

r=7

Area of circle =7^2pi=49pim^2

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2 years ago
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NeX [460]

Matter exists in three states; <em>solid, liquid and gas.</em>

The statement that corrects the error in his table is:

<em>D. The Solids column and the gas column should be switched because solids have a definite shape and volume and gases have no definite shape or volume. </em>

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<em />

Looking at the table, we have the following observations.

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  • <em>The liquid column is properly cataloged</em>
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Solid has definite shape, while gas doesn't.

To make corrections, Marcus needs to switch the gas and the solid column.

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3 0
2 years ago
Subtract.<br> (9x2+3x+6)–(8x2+3)
max2010maxim [7]

Answer:

x^2 +3x +3

Step-by-step explanation:

(9x^2+3x+6)–(8x^2+3)

Distribute the negative sign

(9x^2+3x+6)–8x^2-3

Combine like terms

9x^2–8x^2+3x+6–8x^2-3

x^2 +3x +3

3 0
3 years ago
A rectangular prism has a volume of 100 cubic meters. One of the dimensions is 5 meters. Which pair of measurements could be the
natali 33 [55]

Answer:

1, 4, and 5

Step-by-step explanation:

1 is correct because 5*5=25*4=100

2 is incorrect because 5*5=25*5=125

3 is incorrect because 5*4=20*4=80

4 is correct because 5*20=100*1=100

5 is correct because 5*2=10*10=100

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