Harlee uses a device to convert her electronic textbook into braille. Unfortunately, the textbook did not include text descriptions of the diagrams, and 2/3 of the pages have diagrams. Let N be the number of pages Harlee reads to reach the first page with a diagram. Assume that the probability of each page having a diagram is independent. Find the mean and standard deviation of N. Round your answers to one decimal place.

Answers

Answer 1

Answer:

Mean: 1.5

Standard Deviation: 0.9

Step-by-step explanation:

2/3 of the pages have diagrams, and N is the number of pages Harlee reads to reach a page with a diagram. In order to find the mean, divide 1/(2/3) to get 1.5 as your mean, and then divide sqrt(1-(2/3))/2/3 to get .8660, which rounds to .9.


Related Questions

please help please please​

Answers

Answer:

146 feet

Step-by-step explanation:

The missing angle is 146 degrees. May I please have Brainiest?????

What value of y makes the following equation true?
−12(−5y+4)=2+12y

Answers

Answer:

Solution

 =  25/24

Step-by-step explanation:

hope that helps :)

Explain to me in words how you would find the slope of this line and explain your answer

Answers

Answer:

5/3

Step-by-step explanation:

Looking at the two points, we count the rise (rise/run). It'd be 5 going up from the bottom point all the way to the same level as the top point. Then we count how many units over, which is 3. The slope of this would be 5/3. in slope form would be y=5/3x

Answer:

The slope is 6

Step-by-step explanation:

To find the slope you use the formula rise/run

The rise is the second y coordinate minus the first y coordinate

The run is the second x coordinate minus the first y coordinate

Step one:

Take any 2 points: I used (-1,2) and (-4,-3)

Step two:

Use the formula: rise/run

-4-2/-2-(-1)

-6/-1

6

I hope this helps :)

Find the value of x.
3x - 9+X + 5

Answers

Answer:

4x-4 should be the answer

how many 7/8 cup servings are in 1/2 cup of juice?

Answers

6/4 it’s easy:) your welcome

PLEASE HELP ASAP 80 POINTS!!!!

Theresa volunteers at a food sheif. when she started, there were 213 oranges. After filling X bags of three oranges each, there were fewer than 51 oranges left. How many bags of oranges did Theresa fill?

Write an expression in terms of X for the number of oranges that Theresa bagged.

Part B: Write an expression in terms of X for the number of oranges that are left (have yet to be bagged).

Part C: Write an inequality using the expression from Part B to represent this scenario.

Part D: Solve the inequality for the variable X. Use opposite operations on both sides of the inequality until you get X on one side of the inequality by itself.

Part E: Did you have to flip the inequality sign? Explain why or why not.

Part F: What does the result from Part D tell you about Theresa's situation? Does the answer make sense? Explain.

Part G: Think about graphing the inequality you found in Part D on a number line. What would it look like?

Choose the correct number:

1. open circle on 54 and arrow pointing right
2. open circle on 54 and arrow pointing left
3. closed circle on 54 in arrow pointing right
4. closed circle on 54 and arrow pointing left​

Answers

Answer:

A- The expression 3x represents the number of oranges that she bagged

B-  213 − 3x (or -3x + 213)

C- 213 − 3x < 51 (or -3x + 213 < 51)

D- x >54

E-Yes, I had to flip the inequality sign because I divided both sides of the inequality by a negative number (-3).

F- x > 54 means Theresa filled more than 54 bags of oranges. It makes sense because if Theresa made more than 54 bags of 3 oranges each, there would be fewer than 51 oranges left over.

G- Number 1 is correct.

Step-by-step explanation:

I did it./ Hope it helped : )

Answer:

everyone mark Praezhan brainleist thank you Praezhan so much

Step-by-step explanation:

Find the value of K. The diagram is not to scale. Explain your answer.

Answers

Answer:

639 lo hago para conseguir puntos ;V

Step-by-step explanation:

Ann bought a hat for $16.20, a discount of 30% off. She paid 8% for tax how much was the total?

Answers

Answer:

werwrweqetrweqtwqw3qty

Step-by-step explanation:

eryeqyqeweyewywewerye

Write in decimal form:

0 × 100 +
6 × 10 +
5 × 1 +
2 × (1/10) +
1 × (1/100) +
4 × (1/1000)

Answers

Answer: 65.214

Step-by-step explanation: google caculator

Can sumone please help me w this question? It math. 10 points. What is the value of r in the equation 3r − 6 = 18?

Answers

In this problem r=4 !!!
the answer is r=8

3(8)-6=16

Adam got 56 out of 84 correct in his test.
What fraction of the marks did he get correct?
Give your answer in its simplest form.

Answers

Answer:

56/84

Step-by-step explanation:

Answer:

fraction: 2/3

percentage: 66.6%

Step-by-step explanation:

When rounded to the nearest thousands an elephant weight is 5,000 pounds. What is the least amount the elephant could weigh? I need step by step instructions please.

Answers

Answer:

Step-by-step explanation:

It depends on what you have been told about rounding when a 5 is involved.

If you can round if the answer is 4500, then that would be your answer. If you have some complicated method of dealing with the 5 (involving odd or even numbers) the elephant's minimum weight will be different.

I would go with 4500.

4500


Step-by-step. Equation

The populations of Cities A and B are 1.6 x 10^5 and 1,070,000​, respectively. The population of City C is twice the population of City B. The population of City C is how many times the population of City​ A?

Answers

Answer:

13.375 times

Step-by-step explanation:

1,070,000 times 2=2,140,000. 2,140,000 divided by 160,000=13.375.

have you ever have a dream that you that​

Answers

Answer:

that you would you would you could do

If 2.2x10^6 - 4.3x10^5 what does this equal

Answers

Answer:

If the decimal is being moved to the left, the exponent will be positive. 1.77×10 ...

Step-by-step explanation:

Answer:

The answer is 1,770,000

Step-by-step explanation:

[tex]2.2 \times 10 {}^{6 } - 4.3 \times 10 {}^{5} [/tex]

1. Orders of Operation. Exponents come first before multiplication. So do the exponents first.

2.2×1,000,000-4.3×100,000

2. Order of Operation. Mutilpication comes before subtraction.

2,200,000-430,000

3. Subtract

1,770,000

If the radius of the circle is 7 cm, find its area, rounded to 2 decimal places.

Answers

Answer:

14 :)

Step-by-step explanation:

Do I have this correct or did I read the instructions wrong? This is due tomorrow and I’m still on slide 1. Pls help!

Answers

Answer:you are correct great job

Answer:

Hey man! Just saw this and that answer is not correct! I see how you were thinking tho. Here is how it should be graphed.

Step-by-step explanation:

I have marked the correct dots in green.

the simple formula for price elasicity of demand is

Answers

Answer:

The price elasticity of demand is calculated as the percentage change in quantity divided by the percentage change in price.

(GIVING BRAINLIEST IF U HELP!! PLS DRAW IT OUT!)

Solve 8,397 ÷ 27 = __________ using partial quotients.
Draw it out

Answers

Answer:

311

Step-by-step explanation:

8397/27=311

Answer:

311 :)

Step-by-step explanation:

Use the algorithm method.

 3 1 1

2 7  8 3 9 7

8 1  

2 9

2 7

2 7

2 7

So your answer is 311

Answer this please thanks

Answers

Answer:

No.

Step-by-step explanation:

Because the line doesn't pass through the origin (0,0).

Helen had Php7500 for shopping money. When she got home, she had Php132.75 in her pocket. How much did she spend for shopping?

Answers

Answer:

Step-by-step explanation:

Helen had Php7500 for shopping money

she had Php132.75 in her pocket

she spend= 7500.00-132.75

=7367.25answer


Kelly wants to buy a pair of pants that regularly cost $29.99, but they are on sale for 20% off. How much would Kelly pay for the pants after the discount, and
after the sales tax of 6%

Answers

Answer:

Black Friday sales

Step-by-step explanation:

EXITTICKET:If a car travels 50 m/h , for 5 hours, then how far did the car travel ? (Distance: time. .speed)​

Answers

Answer:

50×5=250m

Step-by-step explanation:

he traveled 250 m

Answer:

250 miles

Step-by-step explanation:

If a car travels 50 miles per hour then we are given 5 hours as a time, we can multiply the two numbers together to get 250 miles. Let's see what the distance is after every hour:

1 hour: 50 miles

2 hour: 100 miles

3 hours: 150 miles

4 hours: 200 miles

5 hours: 250 miles

It is seen that after 5 hours a car driving 50mph would travel 250 miles!

Hope this helps!!

- Kay

using the law of sines, solve for ‘x’

Answers

Answer:

[tex]x=9.91098[/tex]

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

PreCalc

Law of Sines: [tex]\frac{sin(A)}{a} =\frac{sin(B)}{b} =\frac{sin(C)}{c}[/tex]

Step-by-step explanation:

Step 1: Define

A = 15°

a = 7.5 mi

B = 20°

b = x

Step 2: Solve for x

Substitute:                    [tex]\frac{sin(15)}{7.5} =\frac{sin(20)}{x}[/tex]Cross-multiply:             [tex]xsin(15)=7.5sin(20)[/tex]Isolate x:                       [tex]x=\frac{7.5sin(20)}{sin(15)}[/tex]Evaluate:                       [tex]x=9.91098[/tex]

9y - 36 simplified or expanded

Answers

Answer:

simplified

Step-by-step explanation:

look this is mad easy the answer is simplified because since there is no equal sign you dont need to find the value of y.

Diego lives 1/2 miles from school.What is 50% of 1/2

Answers

Answer:

0.25

Step-by-step explanation:

would it be 20.9 increase or decrease?

Answers

Answer: increase because theres no negative number next to it

Step-by-step explanation:

Subtract 7 from all and tell which is the most accurate measurement.

Answers

Answer:

Tool 1

Step-by-step explanation:

[tex]Tool\ 1 = 7.033 cm\\\\Tool\ 2 = 6.91cm\\Tool\ 3=7.1 cm\\\\When\ we\ subtract\ 7\ from\ all\ of\ them\ ,\\Tool\ 1 = 0.033 cm\\Tool\ 2 = -0.09cm\\Tool\ 3=0.1 cm\\\\Here,\\As\ Tool\ 1\ has\ more\ decimals\ in\ it, it\ is\ the\ most\ accurate\ among\ them.[/tex]

A compound proposition that is always ___________ is called a contradiction. A. True B. False

Answers

Answer:

A compound proposition that is always false is called a contradiction

Step-by-step explanation:

A compound proposition that is always false is called a contradiction. Option B is correct.

What is a contradiction?

Contradiction is defined as a situation or set of diametrically opposed ideas. Declaring publicly that you are an environmentalist but failing to remember to recycle is a contradiction.

A compound proposition that is always false is called a contradiction. A contradiction is a statement that contradicts itself, i.e., a statement that cannot be true at the same time. When two statements are combined and lead to a logically untenable conclusion, they are said to be contradictory. If a statement contradicts itself, it must be false. For example, the proposition "This statement is false" is a contradiction, as it leads to a logically untenable conclusion.

Thus, a compound proposition that is always false is called a contradiction. Option B is correct.

Learn more about contradiction here:
https://brainly.com/question/2404344
#SPJ2

what is h(5)=-5²+3×5

Answers

Answer:

the answer will be -10.

Other Questions
1/2b-9+8b-7-b+14I need to combine like terms. An astronaut is working outside the International Space Station where the atmospheric pressure is essentially zero. The pressure gauge on her air tank reads 690000 Pa. What force does the air inside the tank exert on the flat end of the cylindrical tank, a disk 0.150 m in diameter? _________________ set a precedent for the government to use force when necessary in order to maintain social control.a.the Thirteenth Amendmentc.Jays Treatyb.Battle of Fallen Timbersd.The Whiskey Rebellion different type of flatbread A color printer prints 19 pages in 8 minutes.How many minutes does it take per page? John puts $1,500 in a savings account that earns 7% simple interest annually. Find the newbalance in his savings account after three years if John does not deposit or withdraw anymoney. ididmidifkjfjkelajlwkgkl5lgltwemigkktimgkgtmr Solve for x: 9(x + 4) = 1 + 2x * What did ancient flight teach humans about the achievement of human flights 292115What is the angle? Cuales son los modos del silogismo Choose one of the two response formats and write an introduction using theinformation below.Name of article: The Friendship of BoysName of author: Mike BarnsQuote: When boys compete with each other, it can be a form ofbonding?Paraphrase: Some boys develop friendship through competitiveactivities.Introduction: G(x)=(x-2)(3x+3) find the zeros of the function enter the solution from least to greatest if there are 90 calories in 3/4 of yogurt, how many calories are in 3 cups of yogurt? Quick question for you all Tubbo or TommyInnit? Choose wisely. 55 quarters + 88 pennies + $0.28 + 33 dimes = Many experts believe that the _______ will lead to increased deforestation in the Amazon Rainforest. Interoceanic HighwayB Panama CanalC Pan-American HighwayD Suez Canal CJ wrote several pairs of values that he thought wereequivalent. Which of his equations are correct? Pick all thatapply.1.25 = 125%0.03 = 30%0.001 = 1%60%50%22 23 66.6%Guys I need help Im gonna fail math Marthas video game rental plan costs $18 per month .which table shows the sum of the amounts that Martha will pay for her video game rental plan over the next 5 months