3 years ago

My club has 25 members. In how many ways can I choose members to form a 4-person executive committee?

Mathematics

1 answer:

Rama09 [41]3 years ago

4 0

Answer: 12650

Step-by-step explanation:

It can be done in C25 4 = 25!/(25-4)!/4!= 25!/21!/(2*3*4)=

=22*23*24*25/24=22*23*25= 12650 variants

You might be interested in

Round 492.3069 to the nearest thousandth

Llana [10]

The answer is 492.307
The number after the thousandths is 9 - greater than 5 - so we round 6 up to 7.

4 0

3 years ago

The student council sold jars of mixed nuts at their bazaar they were given 40 empty jars. They paid $19.60 for the nuts and $11

Alex Ar [27]

Answer:

$\$1.75$

Step-by-step explanation:

Total amount paid for the nuts is $19.60

Total amount paid for the ribbons is $11.20

Profit made on each jar is 98￠= $0.98

Cost price of the nuts and ribbon for the 40 jars is $19.6+11.2=\$30.8$

Cost price for nuts and ribbonn for one jar = $\dfrac{30.8}{40}=\$0.77$

Selling price is the sum of the cost price and profit.

Selling price for one jar = $0.77+0.98=\$1.75$

They charged $\$1.75$ for each jar.

3 0

2 years ago

What is the factored form of x^2 - 4x - 5?

ser-zykov [4K]

we are given

x^2-4x-5

we can use formula

x^2-(a+b)x+ab=(x-a)(x-b)

so, we have

a+b=4

ab=-5

now, we can solve for a and b

and we get

a=5, b=-1

now, we can plug it in formula

x^2-4x-5=(x-5)(x+1) ............Answer

4 0

2 years ago

Round your answer to this problem to the nearest degree.

Vika [28.1K]

Use the sine law: sinB/b = sinA/a

SinB = b*sinA/a

sinB = 3*sin120° /8

∠ B = 18.94° ≈ 19°

5 0

2 years ago

Read 2 more answers

11154 ÷ 52. Express the remainder as a fraction in the lowest terms

Andrew [12]

11154/52= 214 1/2 is the answer to this question

5 0

2 years ago