deirdremarshaloxl1fc deirdremarshaloxl1fc
  • 10-10-2017
  • Mathematics
contestada

Using four of the letters of the​ alphabet, how many two​-letter codes can we form if we are allowed to use the same letter more than​ once?

Respuesta :

rbruce699 rbruce699
  • 10-10-2017
Aa,ab, ac, ad, ba, bb, bc, bd, ca, cb, cc, cd, da, db, dc, dd
16
Answer Link

Otras preguntas

please can someone help ​
If 7a+3b=20 and 3a+7b=10, what is a+b?
I am really confused can someone please help and explain.
There are 32 boys and 20 girls in a Mathematics class. Find the ratio of: The number of girls to the total number of learners in the class.
The purpose of labor union is to
BRAINLIESTTTTTTTTTTT
Don’t mind the song it’s by Shaggy but I need help with this question
Joe is playing a game at the fair. To win, he must throw a ball and knock down a bottle. Kim doesn't think the bottle will fall over when the ball hits it becau
How did the Reformation spread across Europe?​
The diameter of a basketball is approximately 9 inches. What is its volume? Round your answer to the nearest whole number. A. 382 in to the 3 power. B. 38 in to