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
Nesterboy [21]
2 years ago
10

How many two-digit, positive integers can be formed from the digits 1, 3, 5, and 9, if no digit is repeated?

Mathematics
1 answer:
irga5000 [103]2 years ago
8 0

Answer:

<u>12</u>

Step-by-step explanation:

Using Permutation Formula :

  • ⁴P₂
  • 4! / 2!
  • 4 x 3 x 2! / 2!
  • 4 x 3
  • <u>12</u>
You might be interested in
Johns collection contains US, Indian and British stamos. If the stamps ratios of US to Indian stamps is 5 to 2, and the ratio of
NARA [144]
<span>Figure out what is the commonality for each ratio.
There are India stamps in each ratio, so India is the commonality.

Now you simply take the two ratios and multiply them until India has the same amount.

So, Multiply the first by 5 to get a ratio of 25 US to 10 Indian
Multiply the second by 2 to get a ratio of 10 Indian to 2 British

Now that you have "10 Indian" in both ratios, they match up
You have 25 US : 10 Indian : 2 British.

Since the answer is only asking for US and British, you only need 25 US : 2 British</span>
8 0
3 years ago
SOMEBODY HELP ME IM DESPERATE
garik1379 [7]

I believe it is the commutative property of multiplication. Commutative property is you can put the numbers in any order and it will have the same end result. I got multiplication because it is multiplication.

Hope this helps!



4 0
3 years ago
Read 2 more answers
How do you do...<br> cos2x-sin2x=1-2sin2x
Bess [88]
sin (2 \alpha) =2\cdot sin  \alpha \cdot cos  \alpha \\cos(2 \alpha )=1-2sin^2  \alpha \\-------------------- \\cos2x-sin2x=1-2sin2x\\cos2x+sin2x=1\\1-2sin^2x+2sinx\cdot cosx=1\\-2sinx(sin x-cosx)=0\\ -2sinx=0\ \ \ \ or\ \ \ \ sinx-cosx=0\\\\1)\ -2sinx=0\ \ \Leftrightarrow\ \ sinx=0\ \ \Leftrightarrow\ \ x_1=k \pi \ \ and\ \ k\in I\\2)\ \ sinx-cosx=0\ \ \Leftrightarrow\ \ sinx=cosx\ /:cosx\ \ \ \ \ \wedge\ \ \ \  cos x \neq 0\\tanx=1\ \ \Leftrightarrow\ \ x_2= \frac{ \pi }{4} +k \pi \ \ and\ \ k\in I
3 0
3 years ago
Find the measure of the missing side. Round your answer to the nearest tenth. (PYTHAGOREAN THEOREM)
Burka [1]

Answer:

Rounded to the nearest tenth, the length of the missing side is 5.4 in.

Step-by-step explanation:

According to the Pythagorean theorem, a^{2}+b^{2}=c^{2}, where c is the length of the hypotenuse (the longest side), a and b are the lengths of the other two sides. We can use this to solve for the length of the hypotenuse of the right triangle shown in your question (the missing side):

2^{2}+5^{2}=c^{2}

This simplifies to 29=c^{2}. Now to solve for c (the length of the hypotenuse), we just take the square root of both sides of the equation and solve like so:

\sqrt{29} =\sqrt{c^{2}}

This simplifies to c≈5.4 in.

7 0
3 years ago
Using spreadsheets to Organize Data (PLEASE HELP)
katrin [286]
I can give you the first half!
1. D2 - hours worked on monday, 3hrs
2. E2 - money earned on monday, $15
3. D3 - hours worked on tuesday, 3 hrs
4. E3 - money earned on tuesday, $15
5. D4 - hours worked on thursday, 4 hrs
6. E4 - money earned on thursday, $20
6 0
2 years ago
Other questions:
  • Identify the values of x and y that make the equation 2x + 5i = 16 + (2y)i true. HELP ASAP!!
    14·1 answer
  • The area of a parallelogram is 8√90 and the base is 2√5. what is the height of the parallelogram?
    13·1 answer
  • Which is bigger 7/50 or 11/64?
    6·1 answer
  • HELP PLEASE ANYONE !!!!!
    13·1 answer
  • An empty cup in the shape of a cylinder is being filled with water . The cup is filled at constant rate . The table below shows
    8·2 answers
  • what is the smallest length that can be divided exactly into equal sections of length 5m, 8m and 12m​
    12·1 answer
  • Which of the following best describes the relationship between the variables on the scatter plot below?
    5·1 answer
  • The product of 79 and -0.22 is a positive number. True Or False
    5·2 answers
  • 100 Points and brainliest for correct answer !!
    10·2 answers
  • A water tanklalready contains
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!