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
Dominik [7]
3 years ago
6

pls help asap for 20 points i will mark correct brainle est might be easy. How many 4-digit numbers can you write if you cannot

use any other digits except 0 and 2?

Mathematics
2 answers:
Dvinal [7]3 years ago
7 0

You can write the combination formula which is in the picture. Now if you can't guess what the varibles mean I'll tell you. N is the amount of digits you're allowed to use, and k is the amount of spots allowed in a number. Plus if the factorial sign or ! isn't part of your common knowledge, it means to multiply all  below it stopping at 1. Finally if you comput your information into the formula you find out that there's 24 combinations. I hope this answers your question.

Helen [10]3 years ago
6 0

Answer: 8

Steps:

Since the four digit number cannot start with a 0, it has to start with a 2. So we are left with determining the number of ways to fill the rest 3 digits using only 0's or 2's. 2xxx.

For the third digit position, there are 2 choices (0 or 2) , for each of these, there are 2 choices at the second digit, and for each such choice there are 2 possible choices for the first digit. The total of possibilities is 2*2*2=2^3=8.

Interestingly, this is the same number of possibilities encoded in 3 bits in the binary system.

You might be interested in
in a box of 36 pencils 20 are sharpened what is the ratio of sharpened pencils to unsharpened pencils ​
OleMash [197]

Answer:

20 : 16

or if you have to reduce then the answer is 5 : 4

Step-by-step explanation:


4 0
3 years ago
The ratio of lifting force to area is equivalent for all pairs in the table what are the values of x and y?
Ksivusya [100]
It’s answer y=x4-3 because of x and y are combined in the same way they are similar
8 0
3 years ago
Easy points... round 12717. to the nearest hundredth​
Neporo4naja [7]
I just agree with the other comment
3 0
2 years ago
Is (1, 10) a solution to this system of inequalities?<br> y &gt; 2x + 3<br> y &gt; x + 2
Nat2105 [25]

Answer:

yes

Step-by-step explanation:

5 0
2 years ago
Solve for n. <br><br>0= 1+n ​
maks197457 [2]

Answer:

n = -1

Step-by-step explanation:

To make n on its own, you have to subtract 1 from both sides

0 - 1 = -1 + 1 + n

-1 + 1 = 0

-1 = n

6 0
3 years ago
Other questions:
  • Solve.Mo had some toys. He gave 6 away Now he has 6 toys .how many toys did Mo star with
    10·2 answers
  • How to plot (7/2,-3/2) ?
    8·2 answers
  • Rin incorrectly calculated the mean absolute deviation for the data set 25,25,31,36,38.Her work is shown here. 1. Find the mean.
    9·2 answers
  • Answer these questions please
    8·2 answers
  • solve for x. −ax 3b &gt; 5 x &gt; the quantity 3 times b minus 5 all over a x &gt; the quantity 5 minus 3 times b all over negat
    9·2 answers
  • PLEASE HELPPP I WILL MARK BRAINLIEST
    10·1 answer
  • Write a new function that represents a transformation to the parent function if the new function shifts right 5 units and up 3 u
    7·1 answer
  • Solve for y.<br><br> 7y - 14 = 35
    7·2 answers
  • What equation is equivalent to 2(3-y)<br><br><br> A. 2y - 6<br> B. 6 - 2y<br> C. 6 + y<br> D. 6 + 2y
    5·1 answer
  • The graph below shows a company’s profit f(x), in dollars, depending on the price of the erasers x, in dollars, being sold by th
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!