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
ira [324]
3 years ago
9

The number 21 is a(n) — number because

Mathematics
1 answer:
ser-zykov [4K]3 years ago
3 0

Answer:

Composite

Step-by-step explanation:

because it's factors are:

1, 3, 7, 21

You might be interested in
Need help with all of these!!! ASAP!!<br><br> 15, 16, 17, 18!!!
vodomira [7]

Answer:

15. A

16. B

17. B

18. C

Step-by-step explanation:

8 0
2 years ago
The line represented by the equation 3x + 5y = 2 has a slope of -3/5. Which shows the graph of this equation?
Daniel [21]
Graph 3 is the answer. Choose a point on the line. Go down by 3. Then go to the right by 5.
4 0
3 years ago
What is the solution of the system? Use substitution.
nekit [7.7K]
Substituting y=6x+2 into equation 3y - 18x =12 looks like:

3(6x + 2) - 18x = 12
18x + 6 - 18x = 12  distributive property left side
6 = 12  simplifying the left side

We now see a contradiction:   6 does not equal 12  What this tells us is that there is no solutions to this equation.  So choice 'C' ...
8 0
2 years ago
Read 2 more answers
Please help me! I need help ASAP! D:
madreJ [45]

Answer:

0:42

Step-by-step explanation:

5 0
3 years ago
What is the Square root of 81
Alexeev081 [22]
The answer is 9, hope this helps
6 0
3 years ago
Read 2 more answers
Other questions:
  • short answer, written response math questions, please help will give rewarding :)) &lt;3 thank you !1 eshfjd
    6·1 answer
  • I don't get this at all can you pls help me?
    11·2 answers
  • If X is a r.v. such that E(X^n)=n! Find the m.g.f. of X,Mx(t). Also find the ch.f. of X,and from this deduce the distribution of
    15·1 answer
  • (x+x)^2 × -(x×(-1))=4+x-x^2 <br> solve for x, show work.
    5·1 answer
  • Adair needs $21,150 to purchase a boat. How much money will you need to invest today in a savings account earning 3.2% interest,
    9·1 answer
  • Write the number 3.636408 to the nearest ten-thousandth
    13·2 answers
  • Two consecutive integers are such that 7 times the biggest and then added to the smallest equals
    14·1 answer
  • The joint F.D.P of a bivariate VA (X, Y) is given
    15·1 answer
  • 5x divided by 5 =???????
    15·2 answers
  • I think u help me I love u
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!