A certain model of remote-control Stanley garage door opener has nine binary (off/on) switches. The homeowner can set any code sequence. (a) How many separate codes can be programmed

Answers

Answer 1

Answer:

[tex]Codes= 512[/tex]

Step-by-step explanation:

Given

[tex]Switches = 9[/tex]

[tex]Controls = 2[/tex] ------- on or off

Required

Determine the number of codes to be programmed

Since each switch has any of the on or off controls (i.e on or off), then:

The first switch can be coded in any of the 2 controls

The second switch can be coded in any of the 2 controls

The third switch can be coded in any of the 2 controls

Up till the ninth switch

So, we have that:

[tex]Codes= 2 * 2 *2*2*2* 2 *2*2*2[/tex]

[tex]Codes = 2^9[/tex]

[tex]Codes= 512[/tex]

Hence, there are 512 possible codes


Related Questions

6^3x=14 Show your work

Answers

Answer:

Is 3x supposed to be an exponent?

Step-by-step explanation:

Both possible answer are provided

3x as an exponent and as 6 times 3x

math help please!!

Zach needs 5% cups of sugar to make cookies. He needs an additional 1% cup for
bread. Find the total amount of sugar that Zach needs.

Answers

Step-by-step explanation:

Zach needs 3 cups of sugar

For Normal distribution with mean u 400
and standard deviation o = 100 find probability
that x is less than 535: P(x < 535)

Answers

Answer:

Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

 

Where  and

We are interested on this probability

And the best way to solve this problem is using the normal standard distribution and the z score given by:

If we apply this formula to our probability we got this:

And we can find this probability using the normal standard table or exce:

answer

Which dot plot represents the data in the table?

Answers

Answer:

picturr is not visible to me

Marianne is 15 years old and her brother is 5 years old; is the relationship between their ages proportional?

Answers

Answer:

The ratio is 15:5 or 3:1. If Marianne is 3 years old, her brother is 1. And it is proportional...

Step-by-step explanation:

Hardest question ever what is 2 + fish =

Answers

1 fish 2 fish red fish blue fish

Find the dimensions of a cylinder of volume 17 m3 of minimal cost if the top and bottom are made of material that costs twice as much as the material for the side.

Answers

Answer:

The answer is below

Step-by-step explanation:

The volume of the cylinder with radius (r) and height (h) is given as:

Volume = πr²h

17 = πr²h

h = 17 / πr²

Let k represent the cost of the side and 2k the cost of the bottom.

The area of the side = 2πrh, hence the cost of the side = k(2πrh)

The area of the top and bottom = 2πr², hence the cost of the top and bottom = 2k(2πr²)

The total cost (T) = cost of side + cost of the top and bottom

T = k(2πrh) + 2k(2πr²)

T = 2kπ(rh + 2r²)

Put h = 17/πr²

T = 2kπ (r×17/πr² + 2r²)

T = 2kπ(17/πr + 2r²)

The minimal cost is at dT/dr = 0

[tex]\frac{dT}{dr} =0=\frac{d}{dr} [2k\pi(\frac{17}{\pi r} +2r^2)]\\\\4r-\frac{17}{\pi r^2} =0\\\\4r=\frac{17}{\pi r^2}\\\\r^3=\frac{17}{4\pi }=1.35\\\\r=\sqrt[3]{1.35}\\\\r=1.1\ m\\\\h=\frac{17}{\pi r^2} =\frac{17}{\pi (1.1)^2} \\\\h=4.42\ m[/tex]

What is 5/8 divided by 4/3

Answers

Answer:

15/32

Step-by-step explanation:

5/8 divided by 4^3 |{}+[‘ma

Can someone help answer this

Answers

Answer:

968 - 744 = 224

Step-by-step explanation:

if Fatima's lettuce broccoli and peas all weigh 968 grams when weighed together and her lettuce and broccoli way 744 grams, as shown in the photo, when weighed together you would subtract the weight of the lettuce and broccoli from the weight of the peas, lettuce, and broccoli together.

you would then get 224 as your answer. your number sentence then should be:

968 - 744 = 224

Step-by-step explanation: 968-744=224 is the answer

Answer subtract 744 and 968 and you will get the answer

Which statement correctly describes the relationship represented by the graph?
A.
The relationship is linear and proportional.

B.
The relationship is linear and non-proportional.

C.
The relationship is non-linear and proportional.

D.
The relationship is non-linear and non-proportional.

Answers

Answer: A

Step-by-step explanation: The line is linear as it changes at a constant rate which means it’s also proportional as proportional means as x changed so does y.

Let a=(-7,3) and b=(-2,-12), and c=a+b. What is the magnitude and direction angle of c?

A. |c|=18; theta=135°
B. |c|=18; theta=225°
C. |c|=9sqrt2; theta=135°
D. |c|=9sqrt2; theta=225°

Answers

Answer:

D is correct

Step-by-step explanation:

I got it right on my edge math unit test review.

The value of |c| = 9√2 and θ = 225⁰

What is Magnitude?

The magnitude or size of a mathematical object is a property which determines whether the object is larger or smaller than other objects of the same kind.

Here, given values;

a = (-7, 3)  and b = (-2, -12)

Now, c = a + b

        c = (-7, 3) + (-2, -12)

        c = (-9, -9)

Now, |c| = √(9²+9²)

         |c| = 9√2

Now, tan θ = |y/x|

        tan θ = |-9/-9|

       tan θ = 1

       tan θ = tan 225⁰

         θ = 225⁰

Thus, the value of |c| = 9√2 and θ = 225⁰

Learn more about Magnitude from:

https://brainly.com/question/15681399

#SPJ2

Whoever does will get brainiest. And extra points
A person can walk at a rate of 2 ½ miles per hour. How long would it take the person to walk 10 miles? *
1 point
15 minutes
4 hours
10 hours
25 hours
2. A certain map uses a scale of 1 inch equals 25 miles. How many miles are represented by 5 inches on this map? *
1 point
5
25
50
125
3. A company makes 5 blue cars for every 3 white cars it makes. If the company makes 15 white cars in one day, how many blue cars will it make? *
1 point
9
13
17
25
4. Miranda enlarged a picture proportionally. Her original picture is 4cm wide and 6 cm long. If the new, larger picture is 10 cm wide, what is its length? *
1 point
8 cm
12 cm
15 cm
20 cm
5. The practice range at a golf course charges $4.00 for a bucket of 40 golf balls. At this rate, how much will a bucket of 100 golf balls cost? *
1 point
$10.00
$10.50
$13.50
$16.00
6. A model of a park was built on a scale of 1.5 cm to 50 m. If the distance between two trees in the park is 150m, what is this distance on the model? *
1 point
0.5 cm
4.5 cm
75 cm
225 cm
7. Jerry read a 200 page book in 10 hours. At that rate, how long will it take him to read a 320 page book? *
1 point
16 hours
18 hours
24 hours
32 hours

Answers

1.) 4hours 2.) 125 3.) 25 4.) 12cm 5.) $10.00 6.) 4.5 cm 7.) 16 hours

Simplify the expression using the order of operations.

(8+62)11+7×2

Answers

Answer: 784

Step-by-step explanation:

Answer:

the answer is equal to 2,520


Which graph shows a function whose inverse is also a function?

Answers

Answer:

the one that i take a screen shot

Answer:

the right answer is C

Step-by-step explanation:

edge2020

The college student senate is sponsoring a spring break Caribbean cruise raffle. The proceeds are to be donated to the Samaritan Center for the Homeless. A local travel agency donated the cruise, valued at $2000. The students sold 2629 raffle tickets at $5 per ticket. (a) Kevin bought forty-one tickets. What is the probability that Kevin will win the spring break cruise to the Caribbean

Answers

Answer: the probability that Kevin will win the spring break cruise to the Caribbean is 0.01559

Step-by-step explanation:

Given that;

the total number of raffle ticket sold by the student is 2629

Kevin bought 41 tickets

the probability that Kevin will win the spring break cruise to the Caribbean?

The required probability will be:

Probability

=(Number of favorable outcomes for an Event) / (Total Number of outcome)

so

probability = 41 / 2629

= 0.01559

Therefore the probability that Kevin will win the spring break cruise to the Caribbean is 0.01559

A sample of 5 months of sales data provided the following information:

Month 1 2 3 4 5
Units Sold 97 120 88 97 93

Required:
a. Develop a point estimate of the population mean number of units sold per month (to 1 decimal).
b. Develop a point estimate of the population standard deviation (to 2 decimals).

Answers

Answer:

a. 99

b. 12.31

Step-by-step explanation:

a. Estimate of the population mean number of units sold per month

n = Number of Data Values = 5

Sum of Data Values = Σxi =97 + 120 + 88 + 97 + 93 =  495

Sample Mean = X = Σxi/n = 495 / 5 = 99

The population mean number of units sold per month is 99

b. Estimate of the population standard deviation

Month    Data (x)     X    x - X    (x - X)^2

   1             97          99     -2         4

   2            120        99      21       441

   3             88         99      -11       121

   4             97         99      -2        4

   5             93         99      6         36

Sum of deviation squared          606

s^2 = Sample Variance = Σ(xi - X)2/(n - 1)

Sample Variance = 606/4 = 151.5

Sample Standard Deviation = √Sample Variance

Sample Standard Deviation = √151.5

Sample Standard Deviation = 12.30853362509117

Sample Standard Deviation = 12.31

The point estimate of the population standard deviation is 12.31

are there sample worksheets for accounting

Answers

Yes, there are! Hope this helps! Have a great day! :)

Identify the following numerical values:
The average height of 10 plants grown with rain water in a study of the effects of all
plants grown with rain water.

Answers

Answer:

THE CORRECT ANSWER IS STATISTIC

Step-by-step explananation:

I TRUSTED THE DUDE WHO SAID PARAMETER AND I GOT THE QUESTION WRONG

edit: im pretty sure the answer that said parameter was deleted. Nice!

I need to know for you to Awnser my question


Points and brainlest !!!

Answers

Answer:

id c hot  hf hdjhdw fhwjfehf v;e

Step-by-step explanation:

id c h

Answer:

2/3

Step-by-step explanation:

theres only 4 less than 5 out of 6 so the fractio is 4/6. 4/6 simplified is 2/3

Victor wants to conduct a survey to find how much time the students of his school spent playing football. Which of the following is an appropriate statistical question for this survey? Who plays football on weekends? Who plays football the most on Mondays? How many hours per week do you play football? How many students play football for one hour every day?

Answers

Answer:

The question "How many hours per week do you play football" is most appropriate.

Step-by-step explanation:

He is trying to find how much time students play football so this question will help him get the data of how many hours they play.

Answer:

The answer is "How many hours per week do you play football?"

Step-by-step explanation:

We can figure out that "How many hours per week do you play football?" is the answer because the question is asking of you "Which of the following is an appropriate statistical question for this survey?" the key words in question is "statistical, and appropriate". For the first half of the question it's telling you "Victor wants to conduct a survey to find how much time the students of his school spent playing football." The key words in this first half of the question is "how, much, time, and spent" the answer that says "How many hours per week do you play football?" Has the key words "how, many, hours, per week" these key words it's equal to the key words in the second half of the question "How=How, Many=Many, Hours=Time Per Week=The Time Spent".

So the answer would be "How many hours per week do you play football?".

Need help desperately, I dont want to fail. please answer​

Answers

pretty sure it’s (2, -2)

Which is a way to break up the irregular figure into shapes that you have area formulas for?
A pentagon is broken into a triangle and a trapezoid.
A pentagon is broken into a triangle and a rectangle.
A pentagon is broken into a triangle and a trapezoid.
A pentagon is broken into 2 trapezoids.

Answers

Answer:

1 parallelogram and 1 rectangle

Step-by-step explanation:

its right ;) edge 2022

Answer:

D.

Step-by-step explanation:

Hope this helps you <3

WILL MARK AS BRAINLIEST!!!!!

Answers

answer: y=x-4
explanation: -1-4=-5 0-4=-4 1-4=-3 2-4=-2

Raju bought a book for Rs.35.65. He gave Rs.50 to the shopkeeper. How much money did he get back from the shopkeeper?​

Answers

I Hope this helps u out

f (x) = (x + 1)(x - 3)(x - 4)

Answers

Answer:

f(x) = [tex]x^3-6x^{2} +5x+12[/tex]

zeros : -1,3,4

Step-by-step explanation:

Answer:

I solved for the function operation and got 4.53407019

Step-by-step explanation:

Hope this helps!! :)

what is 10-9x24÷8x6


Answers

Answer:-152

Step-by-step explanation:

Factor 15x-10x^3

PLEASE ASNWER ASAP

Answers

Answer:

[tex]\huge\boxed{\sf 5x(3-2x^2)}[/tex]

Step-by-step explanation:

[tex]\sf 15x-10x^3\\\\Greatest Common Factor = 5x\\\\So, We'll \ take \ 5x \ common\\\\= 5x ( 3-2x^2)\\\\Thus, this \ is \ the \ factorized\ form\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

~AnonymousHelper1807

how to get beter at maths

Answers

Try to understand the problem and take everything step by step

Answer:       to get better in math:-

i) listen to the math class properly

ii) practice the math works thoroughly

iii) do homeworks on time

iv) if there is any doubt still feel free to ask to the teacher

v) do revision of the taken chapters once in month

vi) If u can attend tuition classes then attend them

doing these steps I'm sure u can be better in math.

Hope it helped u, pls mark this as brainliest and put thanks for the ans

what is 1000+500+98+9876+14568=

Answers

Answer:

26042

Step-by-step explanation:

i just know

A Salesman earns 8% commission on all the merchendise that he sells. Last month he sold $4000 worth of merchandise. How much commission ( in dollars) did he earn last month?

Answers

Answer:

$320

Step-by-step explanation:

For this question, you just need to find 8% of $4000.

1. Convert 8% to a decimal. 8% = 0.08

2. Multiply. 0.08 ($4000) = $320

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