Mikepd10 Mikepd10
  • 09-12-2015
  • Mathematics
contestada

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

Respuesta :

hoc hoc
  • 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

Coach miller bought 5.15 pounds of beef to make burgers. The cost of ground beef is$ 3.40 per pound. What was the total cost for all the ground beef?
x^2 +8 =0 please show all work
Which sentence is punctuated correctly? A. The street was lined with maple; oak; and beech trees and in the park there were elms; cedars; and pines. B. The s
2\3 x 6 please help worth 10 points
what visible evidence indicates that a solution is saturated?
choose the correct standard form of the number. forty and nine thousandths. what is the correct answer? A.49,000 B.40.9 C.40.009 D.40.09
what is the difference between a chemical symbol and a chemical formula
How can the lassez-faire doctrine be described?
Is the life cycle of a grasshopper the same as a dog, snake or frog cycle?
What 3 ideas made up the new learning in the Renaissance?