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
ser-zykov [4K]
3 years ago
14

A padlock has a four-digit code that includes digits from 0 to 9, inclusive. What is the probability that the code does not cons

ist of all odd digits if the same digit is not used more than once in the code?
Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
5 0
The answer is D: <span>4,920 out of 5,040</span>
Eduardwww [97]3 years ago
4 0
Since there is no repetition allowed, there are 10 possibilities for the 1st digit, 9 for the 2nd, 8 for the 3rd, and 7 for the 4th. This gives a total of (10)(9)(8)(7) = 5040 four-digit codes.
For all odd digits to be used, there are 5 possibilities for the 1st digit (1,3,5,7,9), 4 for the 2nd, 3 for the 3rd, 2 for the 4th. This gives a total of (5)(4)(3)(2) = 120 codes that only use odd digits.
Therefore there are 5040 - 120 = 4920 codes that do not consist of all odd digits. The probability is 4920/5040 = 41/42.

You might be interested in
What is x in 2(x+20)=90
katovenus [111]

Answer:

25

Step-by-step explanation:

2(25+20)=90. 25 plus 20 is 45 and 45 times 2 is 90

6 0
3 years ago
Read 2 more answers
Please show work!!!!!!!
kolezko [41]

Answer:

B

Step-by-step explanation:

The cylindrical part

Area of the cylindrical part = Circumference of the circle * height

Area of the cylindrical part = pi * d * height

Area = 3.14 * 10 * 9

Area =                                                                                282.6

Lid

Area = pi * r^2

r = 5

Area = 3.14* 5^2 * 2

Area =                                                                         <u>         157</u>

Total                                                                                    439.6                                                                        

I know this doesn't look right according to the diagram, but it is the only way that you can solve the question. That is, you must assume there are two lids, not one as the diagram suggests.

4 0
3 years ago
1) Triangle ABC is a similar to triangle QRS by the AA Similarity Postulate
kupik [55]
The m<B for question 1 is 46 degrees, for question 2 the m<Y is one hundred and seventeen degrees.
8 0
3 years ago
HELP ME PLS IM HELLA DUMB
Anna [14]
Ur not dumb!!! i graphed the line for u here. i suggest watching some khan academy videos for extra practice!

6 0
3 years ago
I need this answer too please help
VMariaS [17]

Answer:

x = 6

Step-by-step explanation:

When 2 chords of a circle intersect then the product of the parts of one is equal to the product of the parts of the other, that is

2x = 3 × 4, that is

2x = 12 ( divide both sides by 2 )

x = 6

7 0
3 years ago
Other questions:
  • Which equation illustrates the Multiplicative Inverse Property? A. 0 • 16 = 0 B. 1(48) = 48 C. 3 • (1/3) = 1 D. 9(1 + 0) = 9(1)
    8·1 answer
  • A plane is flying at 31,348 feet. It needs to rise to 37,000 feet in two stages. In stage 1, it rises 5% of its
    11·2 answers
  • Is 3x-5+y=2y-4 linear if so write the equation in standard form and give the values of A B and C
    10·1 answer
  • If (9x − 4)(9x + 4) = ax2 − b, what is the value of a?<br><br> The value of a is _____________.
    9·1 answer
  • Pls urgently answer
    11·1 answer
  • In the square pyramid shown below, the area of each triangle is 135 square meters and the area of the base is 324 square meters.
    15·1 answer
  • Please help me with this one its the last one.due today also thank you brainly for helping me.also need write and exaplain​
    8·2 answers
  • If x =-4 and y= 3 , what is the value of x - 3y^2 ? <br> A. -13<br> B. -23<br> C. -31<br> D. -85
    14·1 answer
  • Solve the system of equations.<br> 8x + 5y = 24<br> y = -4x<br> x =<br> y =
    14·1 answer
  • This graph shows a proportional relationship.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!