leeplott3097 leeplott3097

14-07-2017
Mathematics

contestada

How many three digit numbers can be made from the digits 1,\ldots,9 if repetitions of digits are not allowed?

Respuesta :

sergibcnusa sergibcnusa

22-07-2017

9 values for each digit, order matters: 123 is different than 321, and no repetion

9*8*7 = 504

Look at a simpler example, with 1, 2, 3:

123
132
213
231
312
321

6 numbers

3*2*1 = 6

Answer Link

Otras preguntas

Cashews cost $4 per pound and peanuts cost $2.50 per pound. If you mix 4 pounds of cashews and 4 pounds of peanuts, what is the total cost of one pound of the m

Plz help!!!! The average of Tom's ten best test scores is 85. The teacher throws out the top and bottom scores, which are 60 and 92. What is the average of the

An employee earned $4,600 in february working for an employer. cumulative earnings of the previous pay periods are $4,800. the fica tax rate for social security

A scale model of a tower is 24 inches tall and 18 inches wide. If the height of the actual tower is 60 feet, what is its width? 18 ft 80 ft 24 ft 45 ft

Sarah is 6 years older than Amy. Write an expression to represent Sarah's age. Use Δ to represent Amy's age. A) Δ- 6 B) Δ+ 6 C) 6 - Δ D) 6×Δ

find the first four term of (1 – 2y) –4

Simple Chemistry Question - 5 points

How did the Soviet style of government differ from American democracy?

Air is primarily composed of Nitrogen and oxygen gases. Which state of these gases can conduct electricity?

F(x)x^2 what is g(x)?