Answer: 60.87%
Step-by-step explanation:
2800 divided by 4600 = 0.60869565 or 60.87%
Assume a is not divisible by 10. (otherwise the problem is trivial).
<span>Define R(m) to be the remainder of a^m when divided by 10. </span>
<span>R can take on one of 9 possible values, namely, 1,2,...,9. </span>
<span>Now, consider R(1),R(2),......R(10). At least 2 of them must have the sames value (by the Pigeonhole Principle), say R(i) = R(j) ( j>i ) </span>
<span>Then, a^j - a^i is divisible by 10.</span>
Answer:
4(9a-4)
Step-by-step explanation:
1 is 69
2 is 37
3 is 106
4 is 21
Answer:
C
Step-by-step explanation:
step 1 is given. step 2, angles B and C are vertical, meaning they are 'pointing' at each other as one could say. step 3, angles C and E are both on the inside of lines R and G, which proves that they are same-side interior angles. step 4, just like B and C, E and H are vertical angles ('pointing' at each other). step 5 uses substitution because its showing that B is congruent to C, C is congruent to E, E is congruent to H, so by compressing that statement up it would lead us to proving that B is indeed congruent to H.