Select the correct answerThe rightmost digit of a number n is x. The rightmost digit of n5 is:radio_button_uncheckedless than xradio_button_unchecked greater than xradio_button_uncheckedequal to xradio_button_uncheckedcannot be determined
Question
Select the correct answerThe rightmost digit of a number n is x. The rightmost digit of n5 is:radio_button_uncheckedless than xradio_button_unchecked greater than xradio_button_uncheckedequal to xradio_button_uncheckedcannot be determined
Solution
The correct answer is "equal to x".
Here's why:
The rightmost digit of a number (in base 10) is its units digit. When you raise a number to the power of 5, the units digit is always the same as the units digit of the original number.
For example, if n = 2, x = 2, and n^5 = 32. The rightmost digit of n^5 is 2, which is equal to x.
So, the rightmost digit of n^5 is equal to x.
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