1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NemiM [27]
3 years ago
10

Show that 21^n, n €N can never ends with 0,2,4,6 and 8​

Mathematics
1 answer:
erastovalidia [21]3 years ago
6 0

Answer:

Step-by-step explanation:

21 ^n = (3 \times 7)^n

21 has no 2 in it's prime factorization. So it can never end in 0, 2 , 4 , 6 , 8.

 OR

Odd number raise to any number is always odd, Which does not include 2, 4, 6 , 8.

So 21^n does not end with 0, 2, 4 , 6 , 8.

You might be interested in
Which expressions are equivalent? <br> A.<br> B.<br> C.<br> D.
Molodets [167]
A and C are equivalent expressions.
3 0
3 years ago
Read 2 more answers
The table shows the heights in inches of seven players on a college basketball team. Which statement is NOT true?
motikmotik

Answer:

use a median , mean and median mode calculator there are plenty online...i don't know for sure this question but you can use those calculators it will generate it for you

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
3x - 2 ≤ -17 I need help please
Margaret [11]
The answer to that question is: FALSE
3 0
3 years ago
Factor the expression.<br><br> 24 - 18y<br><br> ____ ( ____ - 3y)
yKpoI14uk [10]

Answer:

6(4-3y)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
PLEASE HELP ME, I know these are easy but I forgot to do this assignment and now i don't remember how to do any of it.
astra-53 [7]
Okay so you know the first picture give me the name of the assignment and what’s under the name I’ll try to find the answers if you still need it just let me know
7 0
3 years ago
Read 2 more answers
Other questions:
  • What Is 3 2/6- 2/3?
    15·2 answers
  • Jarrod helped his teachers pack textbooks into boxes for the summer. He packed 8 boxes of science textbooks with 16 books per bo
    8·2 answers
  • Which inequality has no solution?
    9·1 answer
  • In a group of 48 children there are three times as many boys as girls how many girls are there
    6·2 answers
  • 1.The ordered pair ( 1, 2 ) lies in which quadrant?
    9·1 answer
  • Solve each problem #1.
    9·1 answer
  • The log-likelihood statistic is analogous to the residual sum of squares in multiple regression in the sense that it is an indic
    10·1 answer
  • Hey all help me please, here's the question in attached pic .​
    15·2 answers
  • A map uses the scale 1.5 cm=25 mi. Two cities
    12·2 answers
  • If sinA=1/7, sinB=1/3.<br>Prove: cos2A=sin4A​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!