Thursday
December 8, 2016

Posts by Jen

Total # Posts: 3,485

World history
What does this question mean? Discuss the effects of the development of the Atlantic trade and its impact on the participating civilizations from 1450-1750
December 9, 2015

Calculus
A home owner wants to fence in his yard of 600 sq. feet. Three sides are to be constructed with chain link fence at a cost of 3.25 per linear feet. The fourth side is to be constructed with a wood stockade fence at a cost of $5.45 per linear foot. A) what is a complete model ...
December 7, 2015

Math
Jim runs 50% faster then Bob. In a 1200m race how much of a head start should Bob get to make the race fair  I got a 600m head start but am I right??
November 5, 2015

math
30 chocolates in a bowl. 12 are dark chocolate, 8 are white chocolate and 10 are coffee. what is the chance of getting a coffee chocolate?
November 5, 2015

Math
Sixty girls were scheduled to paint flower pots for the school's annual fair. When 3 of the girls became sick the rest of the girls had to paint 8 more flower pots each how many flower pots did they have to paint altogether ?
October 28, 2015

Math
In a high school reunion, the organizers decided to sell 1500 raffle tickets at 1000 each for the four prizes of 250,000 125,000 75,000 50,000 What is the expected value of one ticket? I got -670, is this correct? Thanks!
October 28, 2015

Physics
A walker's speed, v, is proportional to the ratio of his leg length, L, and the period of the repeating motion of his legs, T, that is, v ∝ L/T. If the period is measured to be proportional to Lp, where p = 3/5, what power of L must the speed be proportional to? ...
October 27, 2015

conversion
Please help me to convert 0.02ug/ul to ng/mL
October 22, 2015

Physics
Holding a long rope by its upper end, you lower it onto a scale. The rope has a mass of 0.160 kg per meter of length, and is lowered onto the scale at the constant rate of 1.30 m/s. (1) Calculate thrust. (2) At the instant when the amount of rope at rest on the scale has a ...
October 20, 2015

Math
Oh I get it now! Thanks a lot! :D
October 15, 2015

Math
How did it become 2/3? Does the 3 refer to the number of toss? And the 2 refer to the occurrence of the head? I'm sorry if I ask too many questions. Thank you for helping me!
October 15, 2015

Math
A coin is biased so that a head is twice as likely to occur as a tail. If the coin is tossed 3 times, what is the probability of getting 2 tails and 1 head? What do you mean by biased in probability?
October 15, 2015

Math
Thank you so much! I'm out-of-school kid.
October 15, 2015

Math
In a gambling game, a man is paid 400 if he draws a jack or queen and 500 if he draws a king or ace from an ordinary deck of 52 playing cards. If he draws any other card, he loses. How much should he pay to play if the game is fair? My answer is 138.46. Am I correct? Thank you!
October 15, 2015

Math
Oh okay. I see. Thanks a lot!
October 15, 2015

Math
The probability that a washing machine will operate satisfactorily for 3 years is 0.82 while the probability that a floor polisher will operate satisfactorily over the same period of time is 0.78. Find the probability that in a 3-year period, only the floor polisher will ...
October 15, 2015

Statistics
n=13 p=0.75 p (more than 11)
October 14, 2015

Probability
In a gambling game, a man is paid 400 if he draws a jack or queen and 500 if he draws a king or ace from an ordinary deck of 52 playing cards. If he draws any other card, he loses. How much should he pay to play if the game is fair? My answer is 138.46. Am I correct? Thank you...
October 14, 2015

Probability
The probability that a washing machine will operate satisfactorily for 3 years is 0.82 while the probability that a floor polisher will operate satisfactorily over the same period of time is 0.78. Find the probability that in a 3-year period, only the floor polisher will ...
October 14, 2015

Stats
Based on recent U.S. Census data of adults, approximately 48% are male. According to a 2013 study by The Henry J. Kaiser Family Foundation, 70% of U.S. adult males are obese while 58% of U.S. adult females are obese (round to THREE decimals). What is the probability of an U.S...
October 7, 2015

maths
how would you solve 14 = 0.9x(x - 6)
September 30, 2015

english
suggest, create, predict suffix adj, noun, adv, verb
September 13, 2015

english
abuse suffix adj, noun, adv, verb
September 13, 2015

english
attract suffixes of adj, noun, adv, verb
September 13, 2015

Physics
A 2500-kg car is traveling at 20 m/s around a road curve of radius 200 m. Find the central force acting on the car?
September 13, 2015

Trigonometry
a pizza has a diameter of 18 inches and it's divided into 8 equal parts, and you take one slice of it. what is tha central angle of your share in mills measurements? with a solution
September 12, 2015

math
Luanne estimates the sum of 39 + 15 is about 40 + 15, or 55. Jacob estimates the sum of 39 + 15 is 40 = 20 or 60 which one is closer to the exact sum?
September 3, 2015

Science study skills
Me ^-^ is right! 5/5 100%!!!!
August 25, 2015

calculus
find the two numbers whose sum is 10, if the product of one by the cube of other is a maximum.
August 24, 2015

Finance
Organic Foods Inc. sells 50-pound bags of grapes to the public schools for $10 a bag. The fixed costs of this operation are $80,000, while the variable costs of grapes are $.10 per pound. a. What is the break-even point in bags? b. Calculate the profit or loss on 12,000 bags ...
August 2, 2015

math
express the repeating decimal 10.232323 as a ratio of two integers
July 15, 2015

microeconimics
A. Savings on the grocery item: 40% On the laptop: 2.5% B. In absolute terms Savings on grocery items: $4 On the laptop: $10 C. If Samir is willing to sacrifice 20 minutes of his time to save $4 in one case, shouldn't he also be willing to sacrifice 20 minutes of his time ...
July 10, 2015

statistics
Go to a local library; collect a sample of books consisting of the ages of book (based on copyright dates). Plan and describe the sampling procedure, then use the results to construct a confidence interval estimate of the mean age of all books in the library. Please, post and ...
June 26, 2015

Physics
A box is sliding down an incline tilted at an angle of 2.14° above horizontal. The box is sliding down the incline at a speed of 5.15 m/s. The coefficient of kinetic friction between the box and the incline is 0.387. How far does the box slide down the incline before ...
June 25, 2015

chemistry
how many grams of cacl2 are needed to prepare 6.00L of a 0.400M CaCl2 solution
May 30, 2015

science (cladogram)
That was uncalled for sue and that's why I don't like for my children to ask teachers questions and that's why I have started homeschooling my children because of the abuse in the school not only verbal but physical that my children have dealt with just from the ...
May 28, 2015

physics
A resistor is connected inseries
May 21, 2015

Physics
KE= 1/2 mv^2 = 1/2 (0.070 kg) v^2 ; Ft= mv v= Ft/m v=(152N)(0.030s)/0.070kg V= 65 m/s = 1/2 ((0.070 kg) (65 m/s) ^2 = 148.5 J
April 30, 2015

Chemistry 1002
Over a period of time, the concentration of sulfuric acid in a lead storage battery of an automobile has decreased from 38 percent by mass(density=1.29 g/mL) to 26 percent by mass(1.19 g/mL). Assume the volume of the acid remains constant at 715 mL. a)Calculate the total ...
April 19, 2015

Math
24
April 17, 2015

Math
Chad buys peanuts into pound bags Siri packages them into bags that hold 56 pounds of peanuts how many 2 pound bags of peanuts should Chad by so that he can fill the 56 pound bags without having anything that's left over
April 16, 2015

Math
Suppose the speedometer of your car reads 90 km/ hr. If you are driving in the united states where the maximum speed is posted as 50 mi/ hr By how much are you exceeding the speed limit.
April 14, 2015

Math
Can someone do out the calculations for me on 7 yds , 1 ft,- 3 yds, 2 ft,= what in ft . Thanks
April 14, 2015

Math
The figure below represents a garden in which a flower bed ( inner rectangle) is to be installed. The garden ( excluding the flower bed) is to be sodded. The outer is 9' ft width and 15' ft long and the inner is 3'ft wide and 7'ft long. A) Find the area of the ...
April 14, 2015

English/grammar
Is this better Writeacher? Shortly after moving to the Wisconsin, Molly began attending Second Baptist Church. During service one day, she said she was approached by a longtime parishioner named Cynthia Givens, who was aware of Molly's unstable living condition. Cynthia ...
April 12, 2015

English/grammar
Can someone proofread my English paragraph for grammar? I'd really appreciate it. Give me advice/tips on how to make it better Shortly after her moving to the Wisconsin, Molly began attending Second Baptist Church, where during service one day, she said she was approached ...
April 12, 2015

Latin I
I need help translating it
April 11, 2015

Latin I
“Arms and the man I sing”—With these words Virgil began his poem about the origins of the Rome. The “wars” were not only the famous Trojan War, but also the wars in Italy; “the hero” is Aeneas, who traveled from Troy to a new town, New Troy, ...
April 11, 2015

math
A handful of paper clips is 5.2 grams. A handful of push pins is 500 centigram a. Which handful weighs more? So 1c equals .o1 grams so isn't it 5.2 g compared to .05 grams which then means the paper clips are heavier? Thx for any help you can provide.
April 9, 2015

Math
Trying to find the rule & equation for the function table. x= 1, 2, 3, 5, 10, 12 y= 9, 13, 17, 25, 45, 53
April 8, 2015

Finance
• A. Calculate Allied’s cost of debt. (4 marks) The cost of debt is the YTM of the bonds, so: P0: $950 = $80(PVIFAR%,9) + $1,000(PVIFR%,9) PMT: 80 PV: 950 FV: 1000 N: 9 I: YTM = [80 + (1000 – 950) / 9] / 1000 + 950/ 2 R = 85.56 / 975 = 0.0877 or 8.78% FC = 8.82...
April 4, 2015

ENGLISH
That works, but I am going to continue to play around with it a bit. I appreciate you're help Writeacher. You've been very helpful, thank you!
April 3, 2015

ENGLISH
trying to paraphrase what they said
April 3, 2015

ENGLISH
her daily routine after work consisted of grading papers and watching TV so she was looking for ways to spend her time more "productively" after work and decided volunteering would be the best approach. I'm trying to think of a good sentence for all this information
April 3, 2015

ENGLISH
Does this sentence make sense? For Amber volunteering instilled the desire to use her time more productively and simultaneously make a difference in the community.
April 3, 2015

Calculus
If two resistors with resistances R1 and R2 are connected in parallel, as in the figure, then the total resistance R, measured in Ohms (Ω), is given by: 1/R=1/R1+1/R2 If R1 and R2 are increasing at rates of .3Ω/s and .2Ω/s, respectively, how fast is R increasing...
April 1, 2015

Calculus
1 pt) For positive constants k and g, the velocity, v, of a particle of mass m at time t is given by v=mg/k(1−e−kt/m). At what rate is the velocity is changing at time 0? At t=8? What do your answers tell you about the motion? At what rate is the velocity changing ...
April 1, 2015

geometry
An obtuse isosceles triangle has one angle with a measure of (2x) degrees and another angle (5x) degress. What is the measure of the third angle of the triangle?
March 31, 2015

English
How can I make this sentence better? or is it ok? The group offers organizations and companies access to their network of volunteers, resources to create any community-focused promotional event, and cause marketing strategies.
March 30, 2015

Chemistry 1002
Calculate the standard entropy change for the following reaction at 25 °C. 2 Al (s) + 3 ZnO (s) --> Al2O3 (s) + Zn (s) answer is in J/K mol
March 27, 2015

English
thank you for your help, Writeacher. I appreciate it.
March 26, 2015

English
Well he does volunteer as a driver of the truck. If one organization gets food items/donations that they can't use, and rather than throwing it away, he'll bring it to the other organization he volunteers for who may accept it.
March 26, 2015

English
So say like David serves as the liaison between Quality care for Children and the Salvation Army by bringing over food items that cannot be utilized at one organization to the other and vice versa. Does that sentence make sense, or how do you think it could be improved?
March 26, 2015

English
There's a volunteer worker who volunteers closely two diff organizations. If one organization receives donations and can't utilize them, he'll bring it over to the other organization that maybe can, and vice versa. Can it be said that he serves as a "liaison&...
March 26, 2015

algebra
What is the discriminant of the polynomial below? 4x2 + 4x + 1 A. 0 B. -4 C. -12 D. 32
March 18, 2015

AP style
11” x 2-1/4” pvc sleeve with cap will be permanently installed below ground level how would those numbers be transferred in ap style. I tried looking it up and I'm confused.
March 12, 2015

Physics (Kinematics)
In a television tube, the electron travels from an electron gun to the screen 0.45m away in 6.0×10exponent-9seconds. If the electron starts at rest, what is its final speed when it hots the screen? ( I have the answer,but I don't know how to get it)
March 5, 2015

Physics
d=velocity (velocity divided by time) Time So, what you're trying find is distance. Now, just fill in the equation with your data d?=340m/s 2seconds D= 170m Remember that because you have seconds on both sides of the line ( division) they cancel out each other and you'...
March 5, 2015

Chemistry
Phosphorous acid, H3PO3, is actually a diprotic acid for which Ka1 = 5.0 × 10-2 and Ka2 = 2.0 × 10-7. What are the values of [H+] and [H2PO3-] in a 2.0 M solution of H3PO3?
February 27, 2015

chem
A solution is prepared by dissolving 15.0 g of pure HC2H3O2 and 15.0 g of NaC2H3O2 in 600 mL of solution (the final volume). What is the pH of the solution?
February 22, 2015

physics
A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 0.0070m/s2 less than that at sea level (gsealevel = 9.83 m/s2). What is the observatory's altitude? Assume Rearth = 6.37 × 106 m.
February 11, 2015

Latin I
Primo (at first), natura ab viris adorabatur. Antequam (afterwards), viri et feminae deos et deas laudabant. Tum (Then) animas naturae laudabant. Animae naturae timebantur. Viri rogabant: De quo luna (moon) venit (comes)? De quo sol (sun) venit (comes)? Quid est causa fulminis...
February 10, 2015

Latin I
1. Estne in Campania? a. where is Campania? b. he is in Campania, isn't he? c. he is not in Campania, is he? d. Is he in Campania? 2. Vesuviusne populum terruit? a. did vesuvius frighten the people? b. Vesuvius did not frighten the people, did it? c. Vesuvius did frighten ...
February 9, 2015

Physical Science
no but these are my choices A. Bi-212 B. Bi-211 C. Bi-213 D. Bi-214
February 7, 2015

Physical Science
Here are some half-lives for different isotopes of bismuth (Bi): Bi-211 — 2.1 minutes Bi-212 — 60.6 minutes Bi-213 — 45.7 minutes Bi-214 — 19.9 minutes If there are 200 grams of one isotope of bismuth, and after 60.6 minutes there are 100 grams of bismuth, ...
February 7, 2015

Physics
A football punter accelerates a 0.59 kg football from rest to a speed of 8.4 m/s in 0.17s. What constant force does the punter exert on the ball? Answer in units of N
February 6, 2015

Physics
From the window of a building, a ball is tossed from a height y0 above the ground with an initial velocity of 8.50 m/s and angle of 23.0° below the horizontal. It strikes the ground 6.00 s later. If the base of the building is taken to be the origin of the coordinates, ...
February 2, 2015

english
how does imagery help build the theme ,words can be powerful, in "A Barred Owl"?
February 1, 2015

math
Four students, Rick, Robin, Ryu, and Roy are registered for the same class and attend inde pendently of one another, Rick 96.5% of the time, Robin 93.3% of the time, Ryu 8 8.2 % of the time, and Roy 77.9 % of the time. What is the probability that on any given day a) at least...
January 30, 2015

Poetry
thanks!
January 29, 2015

Poetry
Can anyone tell me what kind of poem is "A Barred Owl"? Ex. is it a villanelle or a sonnet...? Thank you!!
January 29, 2015

Physical Science
Which of the following statements are true about chemical reactions? Check all that apply. A. Reactants are on the right when writing a chemical reaction. B. Products are produced in a reaction. C. Reactants are present at the end of a reaction. D. Products are on the right ...
January 27, 2015

science
Shoe companies imbed unique designs on bottom of the sneakers they manufacture.what is the made n purpose? A to increase potential energy B to decrease friction C increase friction D to decrease potential energy. I think its C am I correct?
January 26, 2015

math
roetopodsaoenrfir need to unscramble for a math paper
January 4, 2015

History
Hi I'm honestly stuck on these 3 questions, I looekd on wiki and everything. Please Please help me out.. What action did President Polk take that resulted in the war between the United States and Mexico? He ordered troops to invade Mexico and capture Vera Cruz and Mexico ...
December 21, 2014

Health
It's A, suboptimal. They are less likely to preform in a great standard as compared to their regular performance.
December 2, 2014

algebra
w(3w-1)=200 solve for w
November 16, 2014

math
which lap has the slowest time out of these- 1.59, 1.85, or 1.64
November 16, 2014

Math
write three fractions that can be written as percents between 50% and 75%. Justify your solution.
November 13, 2014

math
what is the least common multiple of 6 and 23? I got 138 am I correct
November 11, 2014

Orgo Lab
1, 4, 7 is my answer but wrong
October 19, 2014

accounting
Accrued salaries 1 Bill’s Company Partial Worksheet For the Year Ended December 31st, 2012 Account Titles Trial Balance Adjustments Adjusted Trial Balance Debit Credit Debit Credit Debit Credit Merchandise Inv. 16 Store Supplies 10 Store Equipment 20 Accum. Depr. Store ...
October 6, 2014

Math Pre-Calc/Trig
If 11 square meters of tile are available to make a rectangle whose width must be 6 meters less than its length, what would be the dimensions of the rectangle?
September 30, 2014

math- pre calc/trig
Thank you
September 30, 2014

math- pre calc/trig
Can you please explain that a little better, I am having a hard time understanding what you are saying
September 30, 2014

math- pre calc/trig
Find the length of each side of a square if the diagonal is 7(square root 2)? How do I solve or set up this problem?
September 30, 2014

Physics
What is the coefficient of friction between a sled and a plane inclined 30 degrees from the horizontal if the sled just slides without accelerating when given an initial push?
September 21, 2014

Math
A truck with 36-in.-diameter wheels is traveling at 55 mi/h. Find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes How many revolutions per minute do the wheels make? • This question is 2 parts. I can't remember the formula ...
September 2, 2014

physics
1. what is the specific heat of an object if the heat needed to change its temperature from 40degree celsius to 75degree celsius for 75 kg of it is 536 kcal? Please show me how to oompute it.
August 13, 2014

physics
1. How many clories will be needed to change the temperature of 3kg of water from 30degree celsius to 100degree celsius? please show me how to compute this,
August 13, 2014

  1. Pages:
  2. <<Prev
  3. 1
  4. 2
  5. 3
  6. 4
  7. 5
  8. 6
  9. 7
  10. 8
  11. 9
  12. 10
  13. 11
  14. 12
  15. 13
  16. 14
  17. 15
  18. Next>>