07-06-2022
Mathematics

contestada

How many combinations exist of the letters W, X, Y, Z, taking two at a time?
04
06
012

Respuesta :

culveryolanda46 culveryolanda46

07-06-2022

Step-by-step explanation:

C(4,2)

Use combinations formula,

c(n,r)=n!/r!(n-r)!

c(n,r)=4!/2!(2!)

[tex]c = \frac{4 \times 3 \times 2 \times 1 }{2 \times 1 \times 2 \times 1} [/tex]

[tex]c = 3 \times 2 \times 1[/tex]

[tex]c = 6[/tex]

Answer Link

Otras preguntas

Which of the following examples best illustrates absolute location? A. It’s next to the World Cup stadium. B. It’s between Siemert Road and Beit Road. C. It’s i

What are the zeros of the quadratic function f(x) = 6x² + 12x – 7? x = -1 ve 13 6 and x = -1 + 13 V6 X = -1 2 V3 2 and x = -1 + V3 X = -1 and x = -1 + + 7 V 6 6

determine the type of the following chemical reaction: Mg(s) + 2HCl(aq)——-> H2(g) + MgCl2(aq) a. single replacement reaction b. decomposition reaction c. com

I need help a lot please help me

When hitting the golf ball the golfer swings the golf club to keep it in contact with the golf ball for as long as possible. The force acting on the golf ball i

When a monopolistically competitive firm is in long-run equilibrium, a. marginal revenue is equal to marginal cost. b. average total cost is minimized. c. margi

Dandy Goods, Inc. manufactures exercise equipment, including stationary bicycles. Julie, a consumer, buys a Dandy bicycle and years later sells it at a garage s

Selectie correct answer. How many solutions for x does the following equation have? 2(x + 4) - 1 = 2x + 7 OA. 7 OB. 1 Ос. infinite OD. 0 Reset Next

What does swelling of the Lymph nodes indicate

the tens digit exceeds the units digit by 3. If the units digit is r what is the value of the number ?The next even integer that is larger than 2n, if 2n is an