Mathematics College

A thief steals an ATM card and must randomly guess the correct pin code that consists of 4 digits (0 through 9) that must be entered in the correct order. Repetition of digits is allowed.
What is the probability of a correct guess on the first try?

Answers

Answer 1

Answer:

[tex]\frac{1}{10000} = 0.0001[/tex] probability of a correct guess on the first try.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

Only one correct key, so [tex]D = 1[/tex]

Total outcomes:

4 digits, each with 10 possible outcomes. So

[tex]T = 10^4 = 10000[/tex]

What is the probability of a correct guess on the first try?

[tex]p = \frac{D}{T} = \frac{1}{10000} = 0.0001[/tex]

[tex]\frac{1}{10000} = 0.0001[/tex] probability of a correct guess on the first try.

Related Questions

The bottom part of this block is a rectangular prism the top part is a square pyramid you want to cover the block entirely with paper how much paper do you need base is 6 cm height is 5 cm angle is 4 cm

Answers

look up the fomulas and plug stuff in

BRAINLIEST PLEASE HELP
EASY 7TH GRADE MATH
WILL MARK BRAINLIEST
SHOW WORK!!
What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 4.5?
A) Perimeter = 46 cm, area = 131.25 cm2
B) Perimeter = 126 cm, area = 972 cm2
C) Perimeter = 46 cm, area = 972 cm2
D) Perimeter = 126 cm, area = 131.25 cm2

Answers

C!! Is the answer welcome:))

17
Here are ticket prices for a theme park.
Single tickets
Adult £48 Child £26
Special offer tickets
1 adult and 2 children £82
2 adults and 2 children £120
17 (a)
Freya buys tickets for 3 adults and 4 children.
She pays the cheapest possible total cost.
How much does she save compared to buying all single tickets?

Answers

Answer:

She saved $46

Step-by-step explanation:

1. Price for 3 adults would be $144

2. Price for 4 children would be $104

3. Total price for individual tickets would be $248

4. She bought 1 of [Combo 1] and 1 of [Combo 2]

5. Therefore, she paid $202

6. She saved $46

PLEASE HELP ME WITH THIS QUESTION I WILL GIVE BRAINLIEST!!!

Answers

Answer:

I think is B

Step-by-step explanation:

Write an algebraic expression.
Multiply the sum of 4 and a number (n) by 3.

Answers

The answer could look sumn like this 4+n(3)

X^3+8 divided by x+2

Answers

Answer: x^2+4

Step-by-step explanation:

Answer:

x^2 - 2x+4

Step-by-step explanation

Identify the range of the function shown in the graph.
10
17
A. All positive real numbers
B. All real numbers
C. 20
D. All positive integers

Answers

Answer:

I believe the answer is B) All real numbers

Find the approximate circumference of a circle with a diameter of 100 yards.
O 628 yards
31 yards
157 yards
314 yards

Answers

Answer:

D. 314 yds

Step-by-step explanation:

Given:

Diameter = 100 yds

Required;

Circumference of the circle

Solution:

Circumference of circle = πd

Plug in the value

Circumference = π × 100

= 314 yds (nearest whole number)

Wavelength and Frequency

Determine the ratio of the notes to middle C.
Express the answers as a simple integer ratio. (Ratios will be approximate due to rounding.)

The smaller the numbers in the ratio, the greater the consonance. Decide which of the notes when played with middle C would have the greatest dissonance.

a. G and C
b. B and C
c. D and C
d. E and C

Please select the best answer from the choices provided

Answers

Answer:

B. B and C

Step-by-step explanation:

I calculated it logically

Answer:

The answer would be a. G and C.

Step-by-step explanation:

When calculating G/C, 329/261.6= 1.49847 rounded.

We are looking for the closest integer ratio to that number which is 3 to 2. A 3/2 ratio =1.5 which is as close to 1.49847 as you are going to get with a ratio. Hope this helps!

4+3.2)×(9−2)+2.5
No links hellp meeee!

Answers

Answer:

52.9

??

Step-by-step explanation:

in an examination for final student of a school 60 offered history, 50 economics and 48 literature, 30 Offered history and economics 16 Offered history and literature 22 offered economics and literature if 10 candidates offered all the three subject find
1: the number that offered history
2:the number that offered only economics
3:the number that offered only literature
4:how many candidates sat for the examination assuming that each candidate sat for at least one subject​

Answers

Step-by-step explanation:

A 106 offered history to students

Scott is selling coupon books to raise money for his football team. If he raised $60 so far and the coupon books cost $15 each, how many more must he sell in order to raise at least $300?

Answers

300-60=240/15= 16 cupón books
300 divided by 15 is 20, so he needs to sell 20 books total to get the 300.
60 divided by 15 is 4, so hes already sold 4 books.
20-4=16
He needs to sell 16 more coupon books to reach his goal

simplification of 1.5kg : 250gm
ratio question

Answers

Answer:

1500g:250g

=

6:1

Hope I could help

Freya drinks 8 ounces of milk each day. Let m represent the number of ounces of milk Freya drinks in d days

Answers

Answer:

m = d times 8

Step-by-step explanation:

What is the difference between 8477 and 4844 ?

Answers

Answer: 3,633

Step-by-step explanation: 8,477 - 4,844 = 3,633

Answer = 3,633 :) your welcome

Please help me solve this problem

Answers

Answer:

D, 225

Step-by-step explanation:

Because this equation already has a1, it's useless to test with that, so instead solve for a2.

You would have a2 - 5a1, which would get you a2 = 5(9) because we already know what a1 is, which is 9. a2 = 45

Now we have a2, which is 45, so now we solve for a3

We would have a3 = 5a2 = a3 = 5(45) which is 225 which is a3

Also thanks for the fat 18 points dude, you really put 36 points into this one big value hope this one helped you a lot

This table shows the number of students at a school in the years 2014-2016, 2014 1,030 students 2015 ? students 2016 1,300 students.In 2015, there were more students than in 2014 but fewer than in 2016. Which could be the number in 2015?

Answers

Answer:

it could be the number in 2015 is 2,330

Step-by-step explanation:

Just add the number of the students in 2014-2016.

1,030+ 1,300=2,330

14. Which of the following ratios is not equal
to the ratio 12:36?
(1) 3:9
(2) 5:15
(3) 9:36
(4) 10:30
(5) 16:48

Answers

12:36 = 1:3,

3:9 = 1:3

5:15 = 1:3

9:36 = 1:4

10:30 = 1:3

16:48 = 1:3

So, 9:36 is the answer.

what is the additive inverse of the complex number 9-4i?

B on edg

-9+4i

Answers

Answer:

-9 + 4i

Step-by-step explanation:

The additive inverse ("opposite") of a complex number a + bi  is  -a - bi.

Just use the opposites of  a  and  b.

Roll a 1-6 number cube twice. Probability of a
6 both times

Answers

1/36 because there are 6 sides and the you are trying to figure out what the probiblity of rolling 1 out of 6 is

20)
The cost (C) of materials for a deck varies jointly with the width (w) and the length (1).
If c = $470.40 when w = 12 and 1 = 16, find the cost when w = 10 and I = 25? Be sure to respond in
complete sentence that explains your answer in relation to the question

Answers

Answer:

u mad bruv? xD  Xd DxD XDXDXDdd

Step-by-step explanation:

6+4*{3+7}=

um i need help

Answers

Answer:

46

Step-by-step explanation:

6+4×10=6+40

6+40=46

Solve

1/5(20−10x)−8x>−6x−16

Answers

Answer:

Step-by-step explanation:

4 - 2x - 8x > -6x - 16

4 - 10x > -6x - 16

4 - 4x > -16

-4x > -20

x < 5

Which numerical pattern is linear?
A.0, 1, 4, 9,
B.1, 2, 4, 8, ...
C.1, 3, 6, 10, ...
D.2, 4, 6, 8, ...

Answers

Answer:

D.2, 4, 6, 8, ...

Step-by-step explanation:

This is linear because all successive terms in the numerical pattern have the same difference between them.

graph triangle cuz with vertices x(-2, -4), y(2, -1), and z(4, -3) on the coordinate grid.

Answers

This is what I got pls mark me brainlest

Work out 65% of 300.

Answers

Step-by-step explanation:

21.6%

mark as brainliest

Answer:

195

Step-by-step explanation:

65%=65÷100=0.65

0.65×300=195

25 POINTS!!!!!!!! Write the slope-intercept form of the equation of the line described.

Answers

Answer:

I'm sorry hindi ko po alam

I NEED HELP ON THE 2 PROBLEMS PLEASEE

Answers

Answer:

1. $7.39/hour 2. $0.75/foot

Step-by-step explanation:

1. 66.5/9= about 7.39 dollars

2. 15.75/21=0.75 dollars

Need full answer quick please help

Answers

Answer:

Line 1 contains an error.

Step-by-step explanation:

2k^2 and 2 are fine but 2k and 1k don't make 5k since when you add it you would get 3k.

Can someone help me with question 1 and 2 please​

Answers

Answer:

Didn't post the picture

Step-by-step explanation:

Where are the questions?
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