Me pueden ayudar por favor

1 answer:

4 0

1) 1 digito -----> puede ser 7 numeros
2 digito ----->puede ser 7 numeros
9 digito ----->puede ser 9 numeros
el resto tienen 10 numeros cada digito
numeros diferentes=7*7*9*10*10*10*10*10*10*10=4410000000 (cuatro mil cuatrocientos diez millones) numeros diferentes

2) perro------------->3
gato---------------> 6
oso----------------> 2
a) Seleccionar un perro, un gato y un oso.----------> 3*6*2=36 maneras

b) Seleccionar un perro o un gato o un oso.--------> 3+6+2=11 maneras

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