Mikepd10 Mikepd10

09-12-2015
Mathematics

contestada

How many 4-digit palindromes contain both the digits 1 and 2

Respuesta :

09-12-2015

4 digit palindromes must be of form abba, so being required that you use both numbers, you only have two: 1221 and 2112

Answer Link

Otras preguntas

Identify three search combinations you could use to find information about natural disasters on the internet.

A coin is tossed and a number cube labelled 1 to 6 is rolled. How many likely outcomes are there? Use a tree diagram

what is 9 over 10 + 15 over 40

MEDAL Which of the following best describes the characteristics of less fertile soils, increase in disease-carrying mosquitoes, and flooding of homes and villag

Which best describes how DNA is used as a molecular clock? The number of mutations in DNA is compared between two species. The total amount of DNA is compared b

Which term describes a pure substance that is made up of only one type of atom? 1)matter 2)rock 3)compound 4)element

A ceramic artist can shape a pot in 3 minutes. It takes 10 minutes to fire one batch of pots in the kiln. If there are p pots in a batch, which expression repr

What is life? With your words.

Which of the following is an example of moving properly for calf raises?

Which of the following statements about language in Canada is true? A. Canada requires all people to speak English. B. Canada requires all people to speak Frenc