According to a Wired magazine article, of e-mails that are received are tracked using software that can tell the e-mail sender when, where, and on what type of device the e-mail was opened (Wired magazine website). Suppose we randomly select received e-mails.

Answers

Answer 1

a.The expected number of emails is 12

b. The variance and the standard deviation is 7.200 and 2.683

Calculation of expected number of emails, variance and standard deviation:

Given that

P = 0.40 and n = 30

a)

The expected value of received e-mails is

= n × p

= 30 × 0.4

= 12  

b)

The variance of emails received is

= n × p × (1 - p)

= 30 × 0.4 × 0.6

= 7.200

Now

The standard deviation of emails received is

= sqrt(variance)

= 2.683

We simply applied the above formula

Learn more about variance here:  https://brainly.com/question/24138432

According To A Wired Magazine Article, Of E-mails That Are Received Are Tracked Using Software That Can

Related Questions

10. Which point is the solution for this System of equation?

Answers

Answer:

Our X and Y make (2,-1)

Step-by-step explanation:

To find the point that is the solution for the system of equation, we must use the SUBSTUITION property,

[tex]2x+x-3=3\\[/tex]

Now let's solve this, by adding common terms

[tex]2x+x=3x\\3x-3=3[/tex]

Now we have to isolate the variable,

3x-3=3

Add 3 to both sides (opposite of the current)

3x=6 (DIVIDE three to both sides, to isolate the variable)

x=2 ( We know our x value is 2)

Now let's substitute this value into the Y.

y = 2-3 ( now subtract)

y= -1

Our X and Y make (2,-1)

whats pi to the thousandth digit? no google or spam please and a explanation

Answers

Answer: PI to the thousandth digit is 8.

Step-by-step explanation: Since 9 is the last digit in PI, and 3 is the digit at the beginning of PI, then that means that 8 is PI to the thousandth digit.

The measure of the sides of a
triangle are in the extended
ratio of 3:5:7. The perimeter
of the triangle is 45 in. What
are the measures of the three
sides?
a) 6, 16, 23
b) 8, 15, 22
c) 6,9,15
d) 3, 5, 7
e) 9, 15, 21

Answers

Answer:

e) 9, 15, 21

Step-by-step explanation:

First you multiply each number in the ratio by x and set it equal to the perimeter or 45 in this case.

3x + 5x + 7x = 45

Then you add the like terms and get

15x = 45

Solve for x

x = 3

Now multiply 3 by each number

3•3= 9

3•5= 15

3•7= 21

Answer: 9, 15, 21

Hi help please this is due today please help ASAP

Answers

Answer:

Step-by-step explanation:


Taylor earned $240 last week If she worked20 hours, how much
money did she earn per hour?

Answers

Answer:

per hour is 12 dollars

Step-by-step explanation:

240/20= 12

Answer:

That would be $12

Hope this helps!

In the accompanying diagram of parallelogram abode m\angle A=(2x+10) and m/angle=3x. Find the number of degrees in m/angle B (open pictures for diagram)

Answers

Answer:

x = 55

Explanation:

In a parallelogram, the sum of each two consecutive angles is 180°.

In the given parallelogram ABCD, we can note that angles A and B are consecutive angles. This means that their summation is 180°

Therefore:

∠A + ∠B = 180

2x + 15 + x = 180

3x + 15 = 180

3x = 180 - 15

3x = 165

x = 165 / 3

x = 55

Now we can check:

angle A = 2(55) + 15 = 125°

angle B = 55°

angle A + angle B = 125 + 55 = 180°

Hope this helps :)

The residents of a city voted on whether to raise property taxes. The ratio of yes to no votes was 3 to 5. If there were 4465 no votes, what was the total number of votes?

Answers

Answer:

2679 number of yes votes, 4465 number of yes votes. The total number of votes would be 7144. Hope this helps and if possible mark me as brainliest please. THANK YOU

A line passes through the point (8,-2) and has a slope of -5/2. Write an equation in slope intercept form

Answers

Answer:

y= -5/2x+18

Step-by-step explanation:

(Refer to picture)

Just like the last one, use the point-slope formula: y-y1=m(x-x1)

Plug in (8, -2) as y1 and x1

Simplify the equation.

Use the equation below to find y, if m= 10, x= 3, and b = 8.
y=mx+b

Answers

Answer:

y = 38

Step-by-step explanation:

y=mx+b

y = 10 x 3 + 8

y = 30 + 8

y = 38

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Use the distributive property to factor the expression.

2
k

+

10

Answers

Answer:

Step-by-step explanation:

2k+10   | Both terms share the common factor two, so you can take it out (divide both terms by 2)

2(k+5)  | Now if you use the Distributive Property to double check, you get 2k+ 10 again

Find two consecutive integers whose sum is eleven less than three times the smaller integer.

Answers

Answer:

12 and 13

Step-by-step explanation:

You are making some chili and need some onions and peppers. One pound of onions costs $0.97 and one pound of peppers cost $1.30. What is the total cost of 0.76 pounds of onions and 1.5 pounds of peppers? The total cost of 0.76 pounds of onions and 1.5 pounds of peppers is $

Answers

Answer:

The cost of  0.76 pounds of onion is  [tex]x = \$ 0.988  [/tex]

The  cost of  1.5 pounds  of  peppers is [tex] y = \$ 1.455[/tex]

The  total cost is [tex]z =  \$ 2.443  [/tex]

Step-by-step explanation:

From the question we are told that

  The  cost of one pound of pepper is  C = $0.97

   The cost of one pound of onion is  [tex]C_o = \$ 1.30[/tex]

   Generally the cost of 0.76 pound of  onion is mathematically represented as

      [tex]x =  \frac{0.76 * 1.30}{1}[/tex]

=>      [tex]x = \$ 0.988  [/tex]

   Generally the cost of 1.5pound of  peppers  is mathematically represented as

            [tex] y  =  \frac{1.5 * 0.97}{1}[/tex]

=>          [tex] y = \$ 1.455[/tex]

The total cost of 0.76 pounds of onions and 1.5 pounds of peppers is

      [tex]z =  x+ y[/tex]

=>    [tex]z =  0.988 + 1.455 [/tex]

=>    [tex]z =  \$ 2.443  [/tex]

2 1/7+3/7(3x−5)=−4
A) x= -5 1/7

B) x= -3 1/9

C) x= -1 23/49
D) x= - 8/9

Answers

The answer fam is...........B) x= -3 1/9

A lake in East Texas was stocked with 3,000 trout in the year 2000. The number of fish in the lake is modeled by f(x) = 3000 + 100x, where x represents the number of years after 2000 until 2016. Which of the following is the most reasonable domain for the function?

Answers

Answer:

x_>0,_>3000

Step-by-step explanation:

I saw the answer key :)

The domain of a function is the set of input values the function can take.

The reasonable domain of the function is [0,16]

From the question, we understand that x represents the number of years after 2000 until 2016.

In 2000, the value of x is 0In 2016, the value of x is 16

Hence, the reasonable domain of the function is [0,16]

Read more about domain at:

https://brainly.com/question/10197594

Rusty is training for a triathlon. He runs 4miles for every 9 miles he bikes. At the end of his training, he has run o total of 92 miles. How many total miles did he bike?

Answers

Answer:

Rusty bikes for 207 miles

Step-by-step explanation:

Because 23 times 4 gives you 92 so you have to also multipy 9 by 23 gives you 207 miles. So Rusty biked for 207 miles. Hoped this helped.

Answer:

207

Step-by-step explanation:

which is greater -0.53 or-0.51

Answers

Answer:

-.51 is greater

Step-by-step explanation:

-0.51 is greater than -0.53.

What is a number line?

It is the representation of numbers in real order.

The difference between the consecutive numbers in a number line is always positive.

We have,

-0.53 and -0.51

The number line from -0.50 to -0.55.

<_____-0.55__-0.54__-0.53__-0.52__-0.51__-0.50_____>

We see that,

-0.53 is less than -0.51

Thus,

-0.53 < -0.51

Learn more about number line here:

https://brainly.com/question/13425491

#SPJ2

y = 4x +zx + 6 solve for x


plz

Answers

Answer:

y = x(4+z)+6

y-6 = x(4+z)

x=(y-6)/(4+z)

Step-by-step explanation:

-2x + 7 = x-2
What is this ? In the most simplest steps possible

Answers

Answer:

Let's solve your equation step-by-step.

−2x+7=x−2

Step 1: Subtract x from both sides.

−2x+7−x=x−2−x

−3x+7=−2

Step 2: Subtract 7 from both sides.

−3x+7−7=−2−7

−3x=−9

Step 3: Divide both sides by -3.

−3x /−3      −9 /−3

Answer:

x=3

                                            Hope this helps

                                                     (>'-'<)    

The sum of three consecutive even numbers is 66. Find the numbers​

Answers

Answer:

20, 22, and 24

Step-by-step explanation:

hope this helps. can I also have brainliest please :)

Answer:

BRAINLIEST PLZZ

Step-by-step explanation:

The other 2 numbers are (x + 2) and (x + 4)

Their sum is 66:

x + (x + 2) + (x + 4) = 66

x + x + 2 + x + 4 = 66

3x + 6 = 66

3x = 60

x = 20

2nd number = x + 2 = 20 + 2 = 22

3rd number = x + 4 = 20 + 4 = 24

Answer: The numbers are 20, 22 and 24

which is the choice to the inequality below?
-x/9>4
A. x<4
B:x<-36
C.x<-0.44
D. x>-36

Answers

Answer:

x < -36

Step-by-step explanation:

-x/9>4

Multiply each side by -9, remembering to flip the inequality

-x/9 * -9 < 4*-9

x < -36

Can someone help me with this math question? First to answer will get Brainliest! :)

Answers

Answer:

A

Step-by-step explanation:

yiu have to rotate it in order to make that

4. Solve for :
a) ķx = 4

Answers

factors of 4= 4,1 and 2,2 seeing as k and x are different numbers it must be 4 and 1 or -4 and -1

Alright then! First question!
A graph has height (inches) on the x-axis and arm span (inches) on the y-axis. Points are at (30, 27), (45, 45), (53, 50), (60, 60), (67, 70), and (73, 72).

Identify if there is a relationship between the variables.
(A) No, there is no relationship because the points are all up and down.
(B) Yes, the relationship displayed shows arm span increasing as height increases.
(C) Yes, the relationship displayed shows arm span decreasing as height increases.

Answers

Answer:

hmmm...i wanna go with B

Step-by-step explanation:

because it goes from 30 to 45 and 45 and 45 to 53 to 50 then the 50 goes 60 meaning their both increasing as it it goes on

at least i believe im right haha hope this helped if its not to  late

Answer: The answer is (B) Yes, the relationship displayed shows arm span increasing as height increases.

Step-by-step explanation: I got the answer correct hope this helps!

Which expressions are equivalent to 46 ?

Answers

Answer:

frus

ggyfhhfgggdg the nearest whole number is the nearest whole thing that is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number is the nearest whole number of the nearest and the product of the nearest and we are all in this together to to 21211111111wwethkuff

PLEASE HELP ME ASAP I HAVE 4 QUESTIONS BRAINIEST TO WHO IS RIGHT

Answers

Answer:

B: Distinct lines

Step-by-step explanation:

If you go to desmos graphing calculator add put the equations in you can see they never interesct

Answer:

B) distinct parallel lines

Step-by-step explanation:

First, place both equations in slope-intercept form:

y + 6 = [tex]-\frac{1}{3}[/tex] (x - 15)

y + 6 = -1/3x + 5

y = -1/3x - 1

2x + 6y = 24

6y = -2x + 24

y = -2/6x + 4

y = -1/3x + 4

Because they have the same slope and different y-intercepts, they are parallel.

-4/7 + (-4/3) HELP ME

Answers

Answer:

-40/21

Step-by-step explanation:

(-4/7) + (-4/3) =

First you need to find a common denominator:

(-4/7)(3/3) + (-4/3)(7/7) =

(-12/21) + (-28/21) =

Then combine the two fractions:

(-40/21)

And because you cannot simplify further, you are finished.

A cone has a diameter of 6 inches and a height of 8 inches. Find the volume of the both in terms of π and using 3.14 for π.

Answers

Answer

1- 61.95

2- 82.6  

Step-by-step explanation:

V=πr2h divided by 3

1 Select the correct answer. Which rate is equivalent to ? A. B. C. D.

Answers

Answer:

its d

Step-by-step explanation:

4/7 of a $42 restaurant bill = $ ?

Answers

The Answer Is:

24

-Hope this helps!

Answer:

24 Dollars

Step-by-step explanation:

In order to figure out the total, we must multiply 42 times 4/7. We get a total of 24.

52 cat owners shoed up for the annual Cat Convention, including the Crazy
Cat lady who owns 50 cats (The crazy cat lady owns more cats than anyone
else at the convention.).
Explain how you can be certain that at least two people have the same
number of cats.

Answers

Answer:

Due to the amount of cat owners, and the fact that the highest amount of cats that one person owns is 50, It means that the probability of two of them having the same number of cats is high.

Correct me if im wrong

I tried

Step-by-step explanation:

Other Questions
Which phrase probably restates what were so succulent means? The brownies were so succulent .Everyone agreed that they were delicious a. They were delicious b. were so succulent c. everyone agreed that d . the brownies were Which of the following statements best describes why most cultures have changed over time?A. All cultures have been colonized by an outside power at one time or another.B. All immigrants abandon their native cultures and assimilate into new ones.C. New elements and ideas are spread and adopted into existing cultures.D. Decreased trade and communication have increased connections between people. What is the value of y can someone help me The Monroe Doctrine of 1823 established which idea? Write the net ionic equation for the reaction of aqueous solutions of ammonium chloride and iron(III) hydroxide. Which is a solution of 2(t-1)+3t Summarize the story about Robert Bruce use the plot outline and write in complete sentences The following inventory information is available for Ricci Manufacturing Corporation for the year ended December 31, 2017: Beginning Ending Inventories: Raw materials $17,000 $19,000 Work in process 9,000 14,000 Finished goods 11,000 8,000 Total $37,000 $41,000 In addition, the following transactions occurred in 2017: 1. Raw materials purchased on account, $75,000. 2. Incurred factory labor, $80,000, all is direct labor. (Credit Factory Wages Payable). 3. Incurred the following overhead costs during the year: Utilities $6,800, Depreciation on manufacturing machinery $8,000, Manufacturing machinery repairs $9,200, Factory insurance $9,000 (Credit Accounts Payable and Accumulated Depreciation). 4. Assigned $80,000 of factory labor to jobs. 5. Applied $36,000 of overhead to jobs. InstructionsRequired:a. Journalize the above transactions. b. Reproduce the manufacturing cost and inventory accounts. c. From an analysis of the accounts, compute the following: 1. Raw materials used. 2. Completed jobs transferred to finished goods. 3. Cost of goods sold. 4. Under- or overapplied overhead. The following are selected account balances from Penske Company and Stanza Corporation as of December 31, 2021: Penske Stanza Revenues $(842,000 ) $(568,000 ) Cost of goods sold 299,700 142,000 Depreciation expense 207,000 304,000 Investment income Not given 0 Dividends declared 80,000 60,000 Retained earnings, 1/1/21 (668,000 ) (222,000 ) Current assets 572,000 566,000 Copyrights 1,076,000 449,500 Royalty agreements 604,000 1,180,000 Investment in Stanza Not given 0 Liabilities (546,000 ) (1,631,500 ) Common stock (600,000 )($20 par) (200,000 ) ($10 par)Additional paid-in capital 150,000 80,000On January 1, 2013, Penske acquired all of Stanza's outstanding stock for $680,000 fair value in cash and common stock. Penske also paid $10,000 in stock issuance costs. At the date of acquisition copyrights (with a six-year remaining life) have a $440,000 book value but a fair value of $560,000. a. As of December 31,2013, what is the consolidated copyrights balance? b. For the year ending December 31,2013, what is consolidated net income? c. As of December 31,2013, what is the consolidated retained earnings balance? d. As of December 31,2013, what is the consolidated balance to be reported for goodwill? The density of air at STP is 1.285 g/L. Which of the following cannot be used to fill a balloon that will float in air at STP? Tim and Tom are trying to earn money to buy a new game system over a 3-month period. Tim saved $45.69 each month. If they need a total of $214.53 to buy the game system, how much does Tom need to earn each of the 3 months in order to buy the game system?A.25.82B.103.07C.77.46D.168.84 Yousuf needs 7 4/9 yards of fabric to make blanket for his mom for Mothers Day. He found 3 1/3 yards of pink fabric. How much more does he need to finish the blanketA. 4 1/9B. 10 7/9C. 4 3/9D. 10 1/9 Read this excerpt from Memoir, Correspondence, and Miscellanies, from the Papers of Thomas Jefferson. It is long since I wrote to you, because I know you must be where you could not receive my letters: and perhaps it may be some time before I write to you again, on account of a contagious and mortal fever which has arisen here, and is driving us all away. It is called a yellow fever, but is like nothing known or read of by the physicians. . . . All persons who can find asylum elsewhere, are flying from the city: this will doubtless extend it to other towns, and spread it through the country, unless an early winter should stop it. Which excerpt from Fever 1793 connects to the historical account detailed in the excerpt? "Wasnt that long ago folks didnt have any sugar. No coffee or tea, either." "The Free African Society is having a meeting about the fever." "What is wrong with people, Andrew? We suffered all kinds of disease in our youth, but folks were sensible. They didn't squall like children and hide in the woods." "Once a day they remove the bodies for burial. A neighbor threatened to burn the place down if the sick are not removed," explained Mr. Carris. MO bisects LMN, mNMO =6x-20,and 2x+36. Solve for x and find mLMO Solve for y 2x+5y=10 amino acid structure: the only part of the amino acid structure that varies between the amino acids and makes each type unique is Tina was flying to Atlanta from New York. The temperature in Atlanta when the plane landed in the morning was 72. By the afternoon the temperature had risen 21. When Tina went to sleep, the temperature had dropped 11, and the temperature remained the same until the next morning. That morning, Tina flew back to New York where the temperature was 67 What is the volume of kristas rock How does the dolls house support the selections theme?