anthonymillsap9766 anthonymillsap9766
  • 01-01-2018
  • Mathematics
contestada

How many positive palindromic integers are 5 digits long 5-digit long and contain 7 or 8?

Respuesta :

Rod44 Rod44
  • 01-01-2018
If the integers only contain digits 7 or 8 we have to consider 3-digit integers:
777
778
787
877
788
878
887
888
The palindromes would then be:
77777
77877
78787
87778
78887
87878
88788
88888
So there are 8 palindromic integers.


Answer Link

Otras preguntas

which number is 100 less than 38 tens
What events began and ended athens' golden age??
Hitler intended to defeat great Britain by
A rectangle has an area of 30 square units and a perimeter of 34 meters.what are the dimensions of this rectangle
Prove identity tan 3x−tan 2x−tanx = tan 3xtan 2xtanx
Rmshot bought a 3.5oz chocolate bar.within 15minutes he had eaten 0.6 of the bar. How many ounces did he eat?
Indicate which pattern of evolution is shown by the many species of finches on the Galápagos Islands.
Prove identity tan 3x−tan 2x−tanx = tan 3xtan 2xtanx
Rmshot bought a 3.5oz chocolate bar.within 15minutes he had eaten 0.6 of the bar. How many ounces did he eat?
Which sign is the less sign and which one is the greater sign (can someone please tell me I really need help! and I never understand the signs!) is this greater