The units digit of (3)^(44) + (10)^(46) is:
The units digit of (3)^(44) + (10)^(46) is:
Answer/Solution
1
Steps/Work
any power of anything ending in zero always has a units digit of 0. So the first term has a units digit of 0.
The period is 4. This means, 3 to the power of any multiple of 4 will have a units digit of 1.
3^44 has a units digit of 1
.
Of course 0 + 1 = 1
C
The period is 4. This means, 3 to the power of any multiple of 4 will have a units digit of 1.
3^44 has a units digit of 1
.
Of course 0 + 1 = 1
C