Please help!

The access code to a houses security system consists of 8 digits. How many different codes are available if each digit can NOT be repeated?

Answers

Answer 1
Consider one of eight positions separately from all others. There are 10 possible ways to choose
a digit to place on this position since there are ten digits from 0 to 9, and this choice is
independent of all other positions since each digit can be repeated and there is no restriction on
how to choose digits.
So, we have 8 positions and each one is filled by a digit in 10 ways independently from each other,
therefore the total number of possible codes equals to ways it can be done for each independent
position multiplied altogether. This is 10 × 10 × … × 10 = 108
(100 million).
Answer: 108 different codes.

Related Questions

The ratio of boys to girls in ms Cunningham’s class is 2 to 3. There are 18 girls in the class. What is the total number of students in her class?

Answers

Answer:

30 students

Step-by-step explanation:

you have a ratio, and an unknown amount, so set up a proportion

[tex]\frac{2}{3} = \frac{x}{18}[/tex] I used x because the amount of boys is unknown

so then, cross multiply

(so do 3 times x, and 2 times 18)

[tex]3x=36[/tex]

then divide both sides by 3 to get x by itself, and you get

[tex]x=12[/tex]

this means there are 12 boys in the class. because the problem is asking for the total number of students, add 12 and 18 (the number of boys and girls).

you get 30, so there are 30 students in her class.

Which number when rounded to the nearest hundredth is 37.62?

A. 37.612
B. 37.618
C. 37.627
D. 37.626

Answers

Answer:

Letter B. 36.618

Step-by-step explanation:

6 is the tenth 1 is the hundredth, so look at the next number (8/thousandth) and of its 5 or more raise the score, 4 or less let it rest, 8 is 5 or higher so you then remove the 8 and raise the 1 in hundreths place to a 2

Situation: The No Doze Cafe sells Pumpkin Spice Lattes for $3 and Caramel Hot Apple Cider for $2. On a cool autumn morning, the shop sold 5 more Ciders than Lattes and made $25.
Define x and y variables and write the equation/s.

Answers

X is lattes y is ciders
3x+2y=25
y-x=5
y=5+x

3x+2(5+x)=25
3x+10+2x=25
5X=15
X=3

Y=3+5=8

Carter wants to know how often his classmates go to amusement parks. He asks the following question: “Did you go to an amusement park this summer?”
Is his question a statistical question? Explain why or why not.

Answers

Answer:

No, it is not

Step-by-step explanation:

This is not a statistical question because there is no need to apply any sort of math. This is a question that can easily be answered with a yes or no.

Answer:

Sample Response: No. A statistical question addresses difference in a population and offers a variety of responses. Carter’s question would yield only yes or no responses.

If x = 3(y+w)– 1, what is the value of w in terms of x and y?

Answers

The answer for that is the second one

To determine the percentage of alcohol in a liquid contains?

Answers

Answer:

Formula for Calculating Alcohol in Beer

Step-by-step explanation:

Subtract the Original Gravity from the Final Gravity.

Multiply this number by 131.25.

The resulting number is your alcohol percent, or ABV%

QUICKKKKK Someone plz answer number 2

Answers

Answer:

5 times the sun of 2x and 3y equals the difference of y to the second power and 2x cubed

In the diagram below, lines x and y are parallel. What is the relationship between angle b and e? Write an equation if it help

Answers

Answer:

there is no relationship between the two angles if E switched with D then id say corresponding but theres not

Helpppppppppppp ppppp:/

Answers

Answer:

18

Step-by-step explanation:

I hope this helps

Jenny has a rectangular poster. The poster is 1.6 meters long and 1.2 meters wide. What is the area of the poster in square centimeters? Do not round your answer.

Answers

Answer:

1.92 m^2

Step-by-step explanation:

1.6 m x 1.2 m

1.92 m^2

Which situation is represented by the equation 6x = 4x + 18? a, James paid $18 for 4 books. What is the cost of one book? b. James paid the same amount for 6 books as he did for 4 books and a CD that costs $18. What was the cost of each book? c. Six times a number is the same as 4 times the number decreased by 18. What is the number x? d. Six more than the number of red beads in a bag is the same as 18 more than 4 times the number of red beads in the bag. What is x, the number of red beads in the bag,



HURRY PLEASE

Answers

Answer:

B

Step-by-step explanation:

Option B best displays/showcases the equation of 6x = 4x +18

Which comparison is NOT true?
F 3.375 > 3.275
G 6.875 < 6.9
H 2.65 > 2.675
J 7.675 < 7.75

Answers

Answer:

H is NOT True.

Step-by-step explanation:

5 is not greater than 7.

Answer:

no 3 is the answer

Step-by-step explanation:

iam not sure

I don’t understand this question.

Answers

Answer:

The answer is 106 degrees

Step-by-step explanation:

you would have to do (15x + 1) + (10x + 4) = 180°

15x + 10x + 4 + 1 = 180°
25x + 5 = 180°
25x = 175
x = 7

since x is 7 you plug it back in to 15x + 1 to find the measure of rqs

15(7) + 1
105 + 1
106

your answer is 106°

NEED HELP PLEASE !

Can you conclude that the following is a rhombus, rectangle, or square?
A parallelogram's diagonals form eight congruent angles at the vertices.

Answers

B but can we see a pic

In a square, opposite sides are parallel, all sides are equal, and the angles made by the diagonals are equal, that is 45°.

What is a parallelogram?

It is a polygon with four sides. The total interior angle is 360 degrees. A parallelogram's opposite sides are parallel and equal.

In a rectangle, opposite sides are parallel and equal, but the angles made by the diagonals are different.

In a rhombus, opposite sides are parallel and all sides are equal, but the angles made by the diagonals are different.

In a square, opposite sides are parallel, all sides are equal, and the angles made by the diagonals are equal, that is 45°.

More about the parallelogram link is given below.

https://brainly.com/question/1563728

#SPJ2

David completed 12 math problems in 6 minutes. At this rate, how long will it take him to complete 50 math problems ? P

Please help I’ll mark you as brainliest if correct

Answers

Answer:

25 minutes...

Step-by-step explanation:

This is because if he can complete 12 math problems in 6 minutes when u simplify that u get 2 problems done per minute so that would make 50 problems done in 25 minutes

David take 25 minutes to complete 50 math problems.

What is unitary method?

It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

Steps to Use Unitary Method

First, let us make a note of the information we have. There are 5 ice-creams. 5 ice-creams cost $125.

Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.

Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.

Given:

David completed 12 math problems in 6 minutes.

So, he will solve one math problem in= 6/12 = 1/2 minutes

Now, to complete 50 math problem he needs

=50 x 1/2

=50/2

=25 minutes

Hence, David take 25 minutes to complete 50 math problems.

Learn more about unitary method here:

https://brainly.com/question/22056199

#SPJ2

Anyone willing to answer this?

Answers

Answer:

D:he deposits $10 per week

Step-by-step explanation:

Please help ASAP !!!!!!

Answers

Answer:

7 or 8

Step-by-step explanation:

7 when each member does at least one of the three,and 8 when some do neither of the three.

Your ship accidentally left an alien stranded at your starting location.
How does the slope of this line compare with the slope of the line from the origin to the point (1, 4)?

They are the same.
They are opposites of each other.
They are reciprocals of each other.
The second line has no slope.

Answers

Answer:

they are the same

Step-by-step explanation:

Answer:

They are the same got it right on edg

Step-by-step explanation:

If the CPI changes from 121 to 124 between December 2018 and December 2019, the:
deflation rate for 2019 is 2.4%
inflation rate for 2019 is 4.2%.
inflation rate for 2019 is 2.5%.
deflation rate for 2019 is 3%.

Answers

Answer:

Inflation rate for 2019 is 2.5%

Step-by-step explanation:

(124/121) - 1 = 1.02479 - 1 = .02479

Change 0.02479 to percent by multiplying 100 = 2.479%

Round this up to 2.5%

Since the value is increasing from 121 in 2018 to 124 in 2019, this is an inflation.

Answer:

jus 2 ez pz broski lemon squeze

Step-by-step explanation:

329-(-104)


Help ASAP

Answers

Answer:

433

Step-by-step explanation:

When there are 2 neatives together like that it changes to a positive. So it woud be 329+104=433

if cos(x) = -1/4 and tan(x) < 0, what is sin(2x)​

Answers

Answer:

B is correct: (-sqrt15)/8

Step-by-step explanation:

The value of the x is 104.5° then the value of the sin 2x is -0.49. Then the correct option is B.

What is trigonometry?

Trigonometry deals with the relationship between the sides and angles of a right-angle triangle.

If cos(x) = -1/4 and tan(x) < 0

Then the value of the x will be

[tex]\begin{aligned} \cos x &= - \dfrac{1}{4}\\\\x &= \cos^{-1} \dfrac{-1}{4}\\\\x &= 104.5^o \end{aligned}[/tex]

Then the value of the sin 2x will be

[tex]\sin 2x = \sin 2*104.5^o\\\\\sin 2x = \sin 209^o\\\\\sin 2x = -0.4848 \approx 0.49[/tex]

More about the trigonometry link is given below.

https://brainly.com/question/22698523

Which fees are associated with checking accounts and online banking? Select all that apply.

1. Upfront fees.
2. Lost card fees.
3. Interest fees.
4. ATM fees.
5. Inactivity fees.
6. Retainer fees.

Answers

Answer:

I know that upfront fees, inactivity fees, and ATM fees are associated with online banking and checking accounts

Step-by-step explanation:

Solve. Check your answer.
16 = x

2

Answers

answer: 8 = x

explanation: 16 divided by 2 is 8

13)
24 + f = 54
Show some work

Answers

Answer: 30

Step-by-step explanation:

24 + f = 54

f = 54 - 24

f = 30

Answer:

f=30

Step-by-step explanation:

You want to get x by itself on one side, so in order to do that, you need to subtract the 24, and if you do it one side, you need to do it to the other side.

That would give you:

24-24+f=54-24

then simplify it to be:

f=30

Is 3/4 a repeating decimal

Answers

Answer:

No.

Step-by-step explanation:

3/4 = 0.75

Answer: non-repeating

Step-by-step explanation:

Wendy walks 2 miles in 22 minutes. She continues to walk at the same rate. How many minutes will it take her to walk 11 miles? Use a double number line to support your answer.

Answers

Answer:

121 minutes

Step-by-step explanation:

First, we divide the time by the miles

22 ÷ 2 = 11

So now that we have the unit rate, 1 mile for every 11 minutes, we can multiply 11 (the unit rate minutes) by 11 (the given miles she wants to reach)

11 x 11 = 121

So, in 121 minutes, Wendy can walk 11 miles.

(the double number line will look something like this, but going all the way until 121:11)

6.333 x 10^2 standard form

MY BAD!

Answers

Answer:

633.3

Step-by-step explanation:

I need help on this..

Answers

Answer:

you divide the big number by the little number

Step-by-step explanation:

A rectangle has an area of 3/2 square yards. If the width of the rectangle is 1/2 yard, which statement is true?

Answers

Answer:

i believe it is 1/2 yard

Step-by-step explanation:

Can someone do these problems, thank you :-)

Answers

Answer:

Step-by-step explanation:

1) 2^2 + 2^2 = c^2

4 + 4 = c^2

8 = c^2

c = sqrt8

2) 2^2 + 3^2 = c^2

4 + 9 = c^2

13 = c^2

c = sqrt13

3) 10^2 + 4^2 = c^2

100 + 8 = c^2

108 = c^2

c = sqrt108

4) 1^2 + 5^2 = c^2

1 + 25 = c^2

26 = c^2

c = sqrt26

5) 3^2 + 1^2 = c^2

9 + 1 = c^2

10 = c^2

c = sqrt 10

6) 9^2 + 9^2 = c^2

81 + 81 = c^2

162 = c^2

c = sqrt162

Other Questions
3 Ag Brt Ga PO 4 AgPO4 + GabrzBalance or unbalanced PLEASE HELP!!! I DONT KNOW THISSS, DUE RLLY SOONJenny has only 3 1/2 cups of flour in her house. She needs 1 5/8 cups for a brownie recipe. Her sister Jody needs 1 3/4 cup flour for her cookie recipe. Will there be enough flour for both recipes? A group of students are given three problems to solve(Problem A, B and C.)13 students solve problem A, 17 solve problem Band 7 solve problem C.9 solve problems A and B.6 solve problems B and C.5 solve problems A and C.4 solve all three problems.2 solve none of the three problems.How many students are there altogether. Without external forces, the third generation of a bacterium and the original parent cell will have approximately ________ matching DNA sequences.(1 point)33%12.5% 100%25% Convert 50.0 mL to liters. Use the appropriate significant figures during the presidency of john adams, both france and britain supported American Indians impressed US sailors demanded bribes to create peace seized US ships Two neighbors in an apartment building have a shared balcony neighbor wants to use the space to barbecue and the other wants to utilize it to grow plants which component of conflict is most present in the situation ASAP!! If quadrilateral PQRS is a square, what are the coordinates of point E? The National Woman Suffrage Association first called for a constitutional amendment to give women the right to votein thea 1800sb. 1900sd. none of the aboveC.1700s which two aniamls were most important to the plains native americans was split into two spheres of interest, one for the slaveholders and one for free settlers. There are 5 times asmny yellow labs as terriers in the dog park. If there are a toal of 24 dogs,how many dogs are terriers? Complete the equation and solve.24= Select the three adjectives. Don't select any articles (a, an, or the).For the interview, Mabel elected to wear a professional white blouse and a pair of grayslacks with pinstripes. Which of the following is not a power source used for welding?AInverterBEngine-driven generatorCHybridDTransformer with a rectifier Which statements describe the last two lines of a Shakespearean sonnet? Select three options.They rhyme with each other.They are referred to as a couplet.They are the last two lines of a quatrain.They may reinterpret the poems meaning.They change the sonnets rhythmic pattern. Solve the equation, justifyeach step with an algebraicproperty50 + 3x = 7x- 2 How many elements in this compound: HClO 1 2 3 4 Match the items.The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives.a. Showrooming: pricing in one store & while still there using mobile to purchase onlineb. Marketplace Fairness Act of 2013-- specifies how online retailers collect sales taxc. Best Buy introduced price matching even for online offers to promote instore purchased. E-commerce, up 13% year, while mobile commerce is growing at twice that ratee. Vendor Flex places Amazon employees at suppliers warehouses to lower shipping costsf. 80% of new phone purchases are smartphones allowing online shoppingg. Amazon spent $14B building warehouse bigger & closer to customers1. Immediate Environment: COMPANY2. Immediate Environment: COMPETITOR3. Immediate Environment: COLLABORATORS4. Macro Environment: Political/Regulatory/Legal5. Macro Environment: Economic6. Macro Environment: Social/cultural7. Macro Environment: Technological England's first permanent colony in North America was named afterA) Captain John Smith.B) King James L.C) Powhatan.D) Virginia Dare. How can you incorporate strength training, cardio, and flexibility exercises into your daily routine?g