Suppose you need to choose a new combination for your combination lock. You have to choose 3 numbers, each different and between 0 and 40. How many combinations are there? Explain

Answers

Answer 1

Answer:

63,960 possibilities in total.

Step-by-step explanation:

For the first number, you can choose from 41 different numbers, so there are 41 possibilities.

For the second number, you cannot choose the same as the first one, so you are now limited to 40 possibilities.

For the third number, you are down to 39 possibilities since you cannot pick the same as the first two ones.

So, you have 41 * 40 * 39 = 63,960 possibilities in total.

Picking a new combination is easy... remembering it is the hard part :-)

If you want to calculate it from a formula standpoint, the base formula would be:

[tex]P(n,r) = \frac{n!}{(n-r)!} = \frac{41!}{(41-3)!} = 63960[/tex]

Where n is the total numbers possible and r is the quantity of numbers you have to pick.


Related Questions

Use basic trigonometric identities to simplify the expression: sin (-x) cos (-x) csc (-x) =?

Answers

Answer:

[tex]sin (-x) cos (-x) csc (-x) =cos(x)[/tex]

Step-by-step explanation:

We know by definition that the cosine is an even function, therefore

[tex]cos (-x) = cos (x)[/tex]

We also know that the sin is an odd function, therefore

[tex]sin (-x) = -sin (x)[/tex]

By definition:

[tex]cscx = \frac{1}{sinx}.[/tex]

Then:

[tex]csc(-x) = \frac{1}{sin(-x)}.[/tex]

[tex]csc(-x) = -\frac{1}{sin(x)}.[/tex]

Using these trigonometric properties we can simplify the expression

[tex]sin (-x) cos (-x) csc (-x)= -sin(x)cos(x)*(-\frac{1}{sin(x)})\\\\sin (-x) cos (-x) csc (-x)=cos(x)[/tex]

Hello!

The answer is:

The simplified expression is:

[tex]Sin(-x)*Cos(-x)*Csc(-x)=Cos(x)[/tex]

Why?

To simplify the expression we need to use the following trigonometric identities:

[tex]Sin(-x)=-Sin(x)\\Cos(-x)=Cos(x)\\Csc(-x)=-Csc(x)\\Csc(x)=\frac{1}{Sin(x)}[/tex]

We are given the expression:

[tex]sin(-x)*cos(-x)*csc(-x)[/tex]

So, applying the identities and simplifying, we have:

[tex]Sin(-x)*Cos(-x)*Csc(-x)=-Sin(x)*Cos(x)*-\frac{1}{Sin(x)}[/tex]

[tex]Sin(-x)*Cos(-x)*Csc(-x)=Cos(x)*-Sin(x)*-\frac{1}{Sin(x)}[/tex]

[tex]Sin(-x)*Cos(-x)*Csc(-x)=Cos(x)[/tex]

Hence, the simplified expression is:

[tex]Sin(-x)*Cos(-x)*Csc(-x)=Cos(x)[/tex]

Have a nice day!

share 240 in the ratio of 8 3 1

Answers

Answer:

160, 60, 20

Step-by-step explanation:

what is the Factored form of polynominal x^2-12x+27

Answers

the answer is (x−3)(x−9)

3 example of mathematics in everyday life

Answers

Answer: 1. Shopping for the best price.

2. Preparing food.

3. Understanding sports (being a player and team statistics)

Hope This Helps, Please Vote Brainliest.

Everyday life is filled with mathematical applications such as managing finances, estimating travel time and distance, and understanding symmetry in design, demonstrating the practical importance of mastering essential mathematical skills.

Mathematics is deeply embedded in our everyday lives, and we often apply mathematical concepts without even realizing it. Here are three examples that illustrate the prevalence of mathematics in daily activities:

Managing finances: Whether it's budgeting for household expenses, calculating interest on savings, or determining the cost of a purchase after tax, we use basic arithmetic operations such as addition, subtraction, multiplication, and division to keep track of our money.Estimating time and distance: For planning travel, whether driving or using public transport, we use approximations and concepts of speed and distance to estimate arrival times, which involves understanding and applying the formula for speed (distance divided by time).Understanding symmetry: In various design aspects of life, such as art, architecture, and even in nature, we recognize patterns and symmetry. This can involve recognizing one-dimensional or three-dimensional objects and using.

In addition to these practical applications, developing a mental agility for mathematics allows us to employ shortcuts and rule-of-thumb strategies to make our lives easier.

Which statements are true about slices of a nght rectangular prism? Check all that apply
The prism sliced by a plane parallel to the base will take the shape of the base
The prism sliced by a plane parallel to the base will take the shape of the side face
The prism sliced by a plane perpendicular to the base will take the shape of the base
The prism sliced by a plane perpendicular to the base will take the shape of the side ce
U The prism sliced by a plane perpendicular to the base will take the shape of a triangle​

Answers

Answer: A and D .

Explanation: The prism by a plane parallel to the base will take the shape of the base and The prism sliced by a plane perpendicular to the base will take the shape of the sides is the correct answers.

The prism by a plane parallel to the base will take the shape of the base and The prism sliced by a plane perpendicular to the base will take the shape of the sides.

What is a rectangular prism?

There are a total of six faces, twelve sides, and eight vertices in a rectangular prism. It has three dimensions, just like a cuboid: the base width, the height, and the length. The rectangular prism has a rectangular shape at its top and bottom. A rectangular prism has opposite face pairs that are identical or congruent.

To know more about rectangular prism refer to :

https://brainly.com/question/24284033

#SPJ2

How do you prove 4 (cos^4A + sin^4A) / (3+cos4A) = (cos^4A-sin^4A) sec2A?​

Answers

Step-by-step explanation:

Step 1: (sin²A+cos²A)²

Step 2: (a+b)² = a²+b²+2ab

Step 3: (sin²A+cos²A)²=sin⁴+cos⁴+2sin²Acos²A

make sure to use: sin²a+cos²a=1

Step 4: (1)²-2sin²Acos²A = sin⁴A+cos⁴A

Step 5: 1-2sin²Acos²A = sin⁴A+cos⁴A

22722776 x 738399383838338

Answers

Answer:

1.6778484x10^22

Step-by-step explanation:

Answer:1.6778484e+22

Step-by-step explanation:

Just multiply the numbers

Mean of the integers 8,-11,18,-8,-3

Answers

Answer:0.8, just add up and find the mean

First you add up all your numbers then you divide by how many numbers you have to get the mean.

Your answer would .8

What is the volume of the composite figure shown below?

Answers

Answer:

The composite shape has a total area of 2412mm squared.

The volume of composite figure is,

                         [tex]=1873+540=2413mm^{3}[/tex]

Volume of Cuboid:

The volume of composite figure is the sum of volume of upper cuboidal part and volume of lower cuboidal part.

The length , width and height of upper cuboidal part is 13, 12 and 12 mm.

Volume of upper part is,

                  [tex]=13*12*12=1873mm^{3}[/tex]

The length , width and height of lower cuboidal part is 15, 12 and 3 mm.

Volume of lower part is,

                  [tex]=15*12*3=540mm^{3}[/tex]

The volume of composite figure is,

                         [tex]=1873+540=2413mm^{3}[/tex]

Learn more about the volume of cuboid here:

https://brainly.com/question/22694657

Find the missing length round to the nearest tenth I don’t know how to do this

Answers

Answer:

Step-by-step explanation:

Answer:

19.4

Step-by-step explanation:

21^2 = 8^2 + a^2

441 = 64 + 377

the square root of 377 = approximately 19.4

A standard number cube is tossed. Find P(less than 3 or odd).

Answers

Answer:

P(.6666...) or P(2/3)

Step-by-step explanation:

We know we have one single event with 3 outcomes. We can figure that 5 is the only other odd number not 1-3, so that means we have 3+1 outcomes

Ok, so no we know we have 1 singular event with 3+1 possible outcomes

This means the probability is 4/6, due to a normal die having 6 faces.

Therefore, the probability is 4/6, 2/3, or .666666......

Please note that I have not done P&S for over 1 year now and I learned it in geometry, but don't be discouraged as I googled how to do this, but if I wrong, tell me.

The Probability of obtaining a number less than 3 or odd when a standard number cube is tossed is 2/3.

In probability theory, the question is asking for the possibility of tossing a number cube and landing on a number less than 3 or an odd number.

In a standard number cube which is a die, we have six numbers (1, 2, 3, 4, 5, 6).

Numbers less than 3 are 1 and 2.

The odd numbers are 1, 3 and 5.

However, 1 is common to both cases, so we add the total unique outcomes which are 1, 2, 3, and 5.

So, we have four favorable outcomes.

To find the probability, you calculate the ratio of the favorable outcomes to the total possible outcomes.

In this case, it will be 4 favorable numbers against 6 possible numbers altogether.

Hence, P(less than 3 or odd) is 4/6 which can be simplified to 2/3.

Learn more about Probability here:

https://brainly.com/question/32117953

#SPJ3

you sell ice cream cones. the table shows your profit for selling different numbers of cones . based on the x- and y-values in the table , which equation shows how the number of cones sold and profit (in dollars) are related

Answers

Answer:

y=2x-8

Step-by-step explanation:

this is the answer for ttm

solve for x. find the zeros of the function. write the smaller solution first, and the larger solution second. h(x)=(-4x-3)(x-3)

Answers

Final answer:

The zeros of the function h(x)=(-4x-3)(x-3) are x=3/4 and x=3, with the smaller solution being 3/4 and the larger solution being 3.

Explanation:

To solve for x, we need to find the zeros of the function h(x) = (-4x-3)(x-3). The zeros of a function occur where the function equals zero, so setting h(x) to zero gives us:

0 = (-4x - 3)(x - 3)

A function is zero when any of its factors are zero. We can, therefore, set each factor equal to zero and solve:

-4x - 3 = 0 => x = -3/(-4) => x = 3/4

x - 3 = 0 => x = 3

So the zeros of the function are x = 3/4 and x = 3. The smaller solution is x = 3/4, and the larger solution is x = 3.

Julio added 6 cubes to his prism. Calculate the volume. How has the volume changed?(The picture is without the 6 cubes)

Will award 100 points

Answers

The volume changed because the volume used to be 27 cubic inches, but now it is 33 cubic inches since he added the 6 cubes.
I hope this helps : )

Step-by-step explanation:

Assuming the length of each cube's sides is s, then the volume of each cube is V = s³.  The number of cubes before adding is 2×3×3 = 18.  So the total volume is:

V = 18s³

After adding 6 cubes, the volume becomes:

V = 18s³ + 6s³

V = 24s³

Describe how to simplify the expression (3^-6)/(3^-4). Answers: Divide the bases and then add the exponents. Keep the base the same and then add the exponents. Multiply the bases and then subtract the exponents. Keep the base the same and then subtract the exponents.

Answers

Answer:

Last option: Keep the base the same and then subtract the exponents.

Step-by-step explanation:

There is a property called "Quotient of power property".

This property states that if you need to divide two powers with the same base, you must keep the same base and subtract the exponents:

[tex]\frac{a^m}{a^n}=a^{(m-n)}[/tex]

Then, you need to apply this property to the expression [tex]\frac{(3^{-6})}{(3^{-4})}[/tex] to simplify it.

Therefore, you get that the expression simplified is:

[tex]3^{(-6-(-4))}=3^{(-6+4)}=3^{-2}[/tex]

Answer:b

Step-by-step explanation:

Pamela is doing a probability experiment with a box of colored paperclips comprised of red, green, blue, and yellow paperclips. She is drawing a paperclip at random from the box and records the color before returning the paperclip to the box. Her results are shown in the table below.

Color Number of
Times Drawn
Red 44
Green 38
Blue 42
Yellow 36

Complete the following sentences based on the outcomes in the table.

If a paperclip is drawn a total of 800 times, a yellow paperclip is expected to be drawn roughly
times.

If a paperclip is drawn a total of 80 times, a blue paper clip is expected to be drawn roughly
times.

If a paperclip is drawn a total of
times, a green paper clip is expected to be drawn roughly 1,235 times.

Answers

Answer:

Step-by-step explanation:

To calculate the number of yellow paperclips expected to be drawn if a paperclip is drawn 800 times, multiply the number of draws by the probability of drawing a yellow paperclip.

Therefore, if a paperclip is drawn a total of 800 times, a yellow paperclip is expected to be drawn roughly 180 times.

To calculate the number of blue paperclips expected to be drawn if a paperclip is drawn 80 times, multiply the number of draws by the probability of drawing a blue paperclip.

Thus, if a paperclip is drawn a total of 80 times, a blue paper clip is expected to be drawn roughly 21 times.

Finally, calculate the number of draws necessary if a green paperclip is drawn roughly 1,235 times, divide 1,235 by the probability of drawing a green paperclip.

Therefore, If a paperclip is drawn a total of 5,200 times, a green paper clip is expected to be drawn roughly 1,235 times.

could anyone help me with this problem i'm stuck

h(17)= ?

Answers

Answer:

[tex]\sqrt{17t}[/tex]

Step-by-step explanation:

Consider the right side of the table

It informs us of the values for h(t) for different values of t

The top one informs us what h(t) is when t = 17, that is

h(t) = [tex]\sqrt{17t}[/tex], when t = 17, thus

h(17) = [tex]\sqrt{17t}[/tex]

The function for the cost of materials to make a muffin is f(x) = Three fourths x + 3, where x is the number of muffins. The function for the selling price of those muffins is g(f(x)), where g(x) = 3x + 4. Find the selling price of 20 muffins.

Answers

So first let’s put g(f(x)) together by putting f(x) for every x in g(x)

We get g(f(x))=3(3/4x+3)+4 which is the selling price equation

Then you plug in 20 to find the selling price for 20 muffins.

g(f(x))=3(3/4(20)+3)+4

g(f(x))=3(60/4+3)+4

g(f(x))=3(18)+4

g(f(x))=54+4

g(f(x))=58

So the selling price will be $58 for 20 muffins.

answer in need
just answer the first word problem and the 3rd, first section (iii) question

will surly mark brainlist

answer fast plz.........

will earn 12 points + brainlist

Answers

i thimk this might be the answer to question 3 (iii)

I'm sorry I don't know how to solve the first question

what is the expression of the quotient of 32 times a number and 4 is 16​

Answers

Step-by-step explanation:

32x ÷ 4 = 16

32x = 64

x = 2

can a triangle have the sides with the given lengths of 2 in, 4 in, 6 in​

Answers

Not sure. I would say no.

which is greater pls help 108.505 108.5? pls help!!

Answers

Answer:

108.505

Step-by-step explanation:

Let's talk money for just a second. Which would you rather have 20 dollars or 20.32      20dollars and 32 cents?

Isn't 20.32 bigger than 20.

You should say yes.

If that is true, then 108.505 should be larger than 108.5 not by much, but still larger.

After comparing digits after the decimal point, 108.505 is greater than 108.5 because 505 is greater than 500.

When comparing two decimal numbers, you should compare them digit by digit, starting from the leftmost digit. In this case, both numbers start with 108, which is the same. However, when comparing the next set of digits after the decimal point, you have 505 for the first number and 5 (equivalent to 500) for the second number. Because 505 is greater than 500, the first number, 108.505, is greater than the second number, 108.5.

PLEAS HELP 10 POINTS

Answers

Answer:

It is an obtuse angle so it is greater than 90 degrees you will have to use a protractor to figure it out.

hi can you help with this !

In a fruit cocktail, for every 25 ml of orange juice you need 30 ml of apple juice and 45 ml of coconut milk. What proportion of the cocktail is coconut milk?
Give your answer as a fraction in its simplest form.

Answers

9/20 is coconut milk

The proportion of coconut milk in the fruit cocktail is 9/20, which is calculated by dividing the amount of coconut milk (45 ml) by the total volume of the cocktail (100 ml), then simplifying the fraction.

To find the proportion of coconut milk in the fruit cocktail, we first add up the total amount of all the liquids that go into the cocktail. According to the question, for every 25 ml of orange juice, there is also 30 ml of apple juice and 45 ml of coconut milk mixed together. Adding these amounts gives us a total mixture volume of 25 ml + 30 ml + 45 ml = 100 ml for the cocktail.

Next, we need to find out what fraction of this total mixture is coconut milk. Since there are 45 ml of coconut milk in the total 100 ml of the cocktail, the fraction is 45/100. This fraction can be simplified by dividing both numerator and denominator by the greatest common divisor, which is 5, giving us 9/20.

Therefore, the proportion of coconut milk in the fruit cocktail is 9/20.

Use special right triangle ratios to determine the length of x and y below

Answers

Answer:

see explanation

Step-by-step explanation:

sin30° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{1}[/tex]

hence x = sin30° = [tex]\frac{1}{2}[/tex]

and

cos30° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{y}{1}[/tex]

hence y = cos30° = [tex]\frac{\sqrt{3} }{2}[/tex]

What does x equal? Similarity

Answers

Check the picture below.

X= 2

This is the answer I don’t know if you want an explanation or not but it needs to be 20 cHaRaCterS lONg

describe parallel lines and include a sketch that shows parallel lines. give real-world example of parallel lines. Use appropriate labeling and symbols​

Answers

Answer:

The parallel lines are lines that are always at the same distance apart from each other and never touch. Also they must be drawn in the same plane.

Step-by-step explanation:

Consider the provided information.

The parallel lines are lines that are always at the same distance apart from each other and never touch. Also they must be drawn in the same plane.

The sketch that shows parallel lines is shown in figure.

The real life example of parallel lines.

Few examples are:

1) Railroad Tracks

2) Edges of walls

3) Zebra crossing

Parallel lines are straight lines that run in the same direction, never intersect, and maintain a constant separation distance, as seen in railroad tracks.

Parallel-Lines are two or more straight lines that run in the same direction and never intersect, no matter how far they extend. They maintain a constant separation distance between them, and their slopes (steepness) are equal.

In a sketch, parallel lines are depicted as lines that are equidistant from each other and do not cross, remaining at the same distance apart.

The sketch of parallel-lines is shown below;

A real-world example of parallel lines is railroad tracks. When you observe two railway tracks running alongside each other, they serve as a practical illustration of parallel lines. They remain equidistant throughout their length and never converge, ensuring safe and efficient train transportation.

Learn more about Parallel Lines here

https://brainly.com/question/32035102

#SPJ3

what does a flowchart proof

Answers

Answer:

What is shows is that there could be an increase in a business or a decrease. It shows whats happened in the last amount of time. It can show if you have been doing good or bad in something.

Step-by-step explanation:

Answer:

By its diagrammatic representation, a flow chart can represent step-by-step the solution of a task.

Step-by-step explanation:

A flow chart is commonly defined as a diagrammatic representation or concept map of an algorithm. They can be used to shows the statements and reasons needed to indicate the logical order during the solution of a task.

Bearing the above in mind, it could be said that they illustrate the solution to a certain problem, as well they can analyze, design or manage a process.

Indicate a general rule for the nth term of the sequence when a1 = 5 and r = √3 .

an = (√3)(5)n + 1
an = (√3)(5)n - 1
an = (5)(√3)n - 1
an = (5)(√3)n + 1

Answers

the right answer is an=5(3)^(n-1)/2

Answer:

C. [tex]a_n=5\cdot (\sqrt{3})^{n-1}[/tex]

Step-by-step explanation:

We have been given that first term of a geometric sequence is 5 and common ratio is [tex]\sqrt{3}[/tex]. We are asked to find the general rule for the nth term of the sequence.

We know that a geometric sequence is in form [tex]a_n=a_1\cdot (r)^{n-1}[/tex], where,

[tex]a_n[/tex] = nth term of the sequence,

[tex]a_1[/tex] = 1st term of the sequence,

r = Common ratio,

n = Number of terms in sequence.

Upon substituting our given values in general form of geometric sequence, we will get:

[tex]a_n=5\cdot (\sqrt{3})^{n-1}[/tex]

Therefore, option C is the correct choice.

the door frame has measurements of 3 feet by 8 feet. What is the length of the largest table that can be brought in the house on a diagonal? someone please help me out

Answers

Answer:

sqrt(73) = 8.54 feet.

Step-by-step explanation:

Remark

My guess is without the legs.

The person bringing it in will not be able to get a table in that is longer than the hypotenuse of a right triangle.

Givens

a = 8

b = 3

c = ??

Formula

a^2 + b^2 = c^2

Solution

8^2 + 3^2= c^2

64 + 9 = c^2

c^2 = 73

c = sqrt(73)

c = 8.54

The table can be no longer than 8 feet 5 inches about.

Other Questions
Read the excerpt from Roosevelts State of the Union address and the poster below it.Fortunately, there are only a few Americans who place appetite above patriotism. The overwhelming majority realize that the food we send abroad is for essential military purposes, for our own and Allied fighting forces, and for necessary help in areas that we occupy.Which is a difference between the speech and the poster?The poster focuses on the effort of sending food abroad, but the speech does not.The speech focuses on both making contributions at home and sending food abroad, but the poster does not.The poster directly reminds civilians how they can contribute to the war effort, but the speech does not. The speech directly reminds civilians how they can contribute to the war effort, but the poster does not. Please explain your answer. Thank you!! Why are emission spectra referred to as the fingerprints of the elements? Questions for Do Not Disturb: How I Ditched My Phone...: Answer the following questions about Do Not Disturb: How I Ditched My Phone... using at least 3 sentences to explain your answer. Type your answers below each question.What is the authors purpose in writing the article? Explain your answer.Who is the intended audience of the article? Explain your answer. Which statement about printing is false?A. It helped revive interest in classical Roman and Greek art.B. It made books accessible to people and motivated them to get an education.C. It increased the value of original works of art. the company sells the ice cream cups in packages of 12, 18 and 24 units. and the ice cream cones in packages of 14 and 21 units which of the following statements is not true Garry is studying a square pyramid and wants to draw a net of the figure to help determine its surface area. Which net represents a square pyramid?please hurry than you What was the unintended impact of the fugitive slave act? Why are carbon dioxide concentrations expected to increase? A. Carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase. B. Carbon dioxide concentrations are expected to increase, because of an increase in agriculture. C. Carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. D. All of the above Please select the best answer from the choices provided A B C D At the Many Chips Cookie Company, they are serious about the number of chocolate chips in their cookies. They claim that each cookie has c chips. If their claim is true, there will be 200 chips in 10 cookies. Write an equation to describe this situation. what is the area of the regular octagon below? 9ma). 114.5mb). 229.1mc). 391.1md). 458.m The stores below each have the same snowboard for an original price of $189.59. At which store can you get the snowboard for the lowest price? Store A: Sale of 30% off and a successive discount of 10% off. Store B: Sale of 20% off and a successive discount of 20% off. Store C: Sale of 40% off. Who can help me out with this please What is true about royal free images Write the equation of the line with slope 4 through the point (-2, 5) PLEASE HELP!!!Gold symbolizes the hard work and knowledge needed to achieve something desired.How does the symbol of gold affect the meaning in The Alchemist?Select each correct answer.Gold is the ultimate treasure, motivating Santiago to abandon everythingeven Fatima.The desire to find gold prompts Santiago to begin his journey to the pyramids.The alchemist cannot give the Englishman the recipe for gold because it must be earned.The Englishman is driven by his desire for gold, teaching the boy the danger of blind ambition. If a spinner is spun 5 times then each event is independent True or false? 3. After the Revolutionary War, which branch of government did the states make more powerful? A. Their judges B. Their governors C. The state governments D. Their assemblies The thane came to court to discuss his land with the king. What does the bolded word mean?Question 6 options:A rich rulera slave ownera free man who is in service to a medieval lorda land owner Dale makes a model of part of an elemental solid by attaching balls to each other with rods.His model looks something like the following image:How could Dale improve his modeA.by using springs instead of rods to allow the model atoms to vibrate in their positionsB.by using strings instead of rods to allow the model atoms to move more freelyC.by using different sizes of balls to represent different kinds of atomsD.by using cotton balls instead of hard balls to allow the model atoms to change size Steam Workshop Downloader