Thursday

November 27, 2014

November 27, 2014

Total # Posts: 621

**Statistics**

Suppose that hours of sleep per night for single adults between 30 and 40 years of age are normally distributed with a mean of 6.7 hours and a standard deviation of 1.1 hours. What proportion of adults sleep longer than 4.5 hours per night? (Report to 3 decimal places.)
*November 26, 2014*

**Math**

Currently you have $80 and your sister has $145. You decide to save $6 of your allowen e each week, while your sister spends her whole allowance plus $7 a week. How long will it be before you have as much money as your sister?
*November 25, 2014*

**calc**

f"(x)=10, f'(x)=3 f(0)=1/3 find f(1)
*November 22, 2014*

**Calc**

Suppose that we want to estimate the area under the graph of f(x)=X^2+x for x=1 and 3. What is the value of the estimate using four rectangles and taking the sample points to be left-hand endpoints?
*November 22, 2014*

**Math**

Beginning January 1, Community Hospital had 175 inpatient beds. On June 15, the bed count was increased to 200. The hospital provided 67,106 service days to inpatients and 68,012 service days to discharged patients. In addition, there were 9,601 admissions and 9,488 discharges...
*November 21, 2014*

**Math**

Thank You
*November 20, 2014*

**Math**

Ms. Sue, Each coder works 7.5 hours a day
*November 20, 2014*

**Math**

You are the coding Supervisor of a medium sized community hospital. You are staffed with 2 inpatient coders. Your current productivity level for your coders is 3 charts per hour. Your hospital discharges has increased to an average of 75 charts per day. How many staff members ...
*November 20, 2014*

**chemistry**

How many grams of CO2(g) are there in 81.0mL of the gas at 0.789atm and 30 ∘C?
*November 3, 2014*

**Math**

If your car gets 18 miles per gallon of gas, how many pints of gas will you need to take a 698 mile trip
*July 17, 2014*

**business stats**

Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 200 antennas, find the probability that: (Use the poisson approximation to the binomial.)
*July 7, 2014*

**calculus**

When a hammer thrower spins, the hammer generates a circle with a radius of 5 feet. When thrown, the hammer hits a screen that is 50 feet from the center of the throwing area. Let coordinate axes be introduced. If the hammer is released at (-4, -3) and travels in the tangent ...
*June 21, 2014*

**math**

You randomly choose a natural number from 1-10. what is the probability that you choose a multiple of 2 or 3?
*May 5, 2014*

**Math**

Evaluate -3 *x^2+2*y^2 for x=-1 and y=4
*April 27, 2014*

**math (check answer plz)**

thank you!
*April 21, 2014*

**Trig**

A vertical pole stands on a 20° slope from 50 m down the slope from the pole the angle of elevation of the top of the pole is 35 degrees. How tall is the pole
*April 15, 2014*

**chemistry**

if I have the reaction Magnesium + Hydrochloric Acid -> Magnesium Chloride + Hydrogen Gas And I have to 'investigate the effect of the concentration of the acid on the volume of hydrogen gas produced in the above reaction', what would be expected to happen?
*April 7, 2014*

**Math**

Order from greastest to least -1 13/14 , -1.9 , -1 9/11, -1.95 show work
*March 26, 2014*

**accounting**

Bethany Link delivers parts for several local auto parts stores. She charges clients $1.65 per mile driven. She has determined that if she drives 2,400 miles in a month, her average operating cost is $.45 per mile. If Bethany drives 2,800 miles in a month, her average ...
*February 4, 2014*

**Math**

When camomile finished making a bracelet , it was 7.9 inches long what was the diameter?
*January 29, 2014*

**Algebra (Word Problem)**

Here's the word problem: You have a coupon for $50 off your camera purchase of $100 or more at Camera World. Write a function relating a camera's purchase price after coupon, y, to the retail price, x. Give the domain of this function. Here is what I have so far: y = ...
*January 27, 2014*

**Math**

A train leaves the station at noon. The train is 180mi from its destination at 12:45PM and 90mi from the destination at 2:15PM. 1. How far is the station from the destination? 2. At what time will the train reach the destination?
*January 23, 2014*

**Math**

Alex puts his spare change in a jar every night. If he has $11.09 at the end of January, $22.27 at the end of February, $44.35 in April, $75.82 in July, $89 in August, and $114.76 at the end of October, perform a linear regression on this data to complete the following items. ...
*January 23, 2014*

**Algebra (Graphing Calculator)**

When trying to perform a linear regression, my fx-9750II calculator doesn't give me the option of graphing once I put the info into lists. The options it gives me are "SRT-A", "SRT-D", "TOP", and "BTM", but no "GRAPH". I ...
*January 23, 2014*

**Algebra**

Mike’s father is twice as old as he is. Seven years ago, the father was 7 years less than thrice as old as Mike was. Find Mike’s present age.
*January 21, 2014*

**Algebra **

Ruffy is 34 as old as Orlie. Four years ago, Ruffy was 1 year more than 12 as old as Orlie. How old is each?
*January 21, 2014*

**English**

how about this: Although Emerson and Thoreau shared many of the same ideas, Emerson promoted the idea of self improvement whereas Thoreau maintained the idea that man should be content with who they are.
*January 21, 2014*

**English**

I need to write a comparative essay abput Ralph Waldo and Thoreau. I was wondering if i could have help with a thesis.
*January 21, 2014*

**English**

In "First Confession," Gran is best described as a A) flat character. B) round character. C) stock character. D) antagonist. In "First Confession," all of the following situations contribute to the humor created in the story by transforming a familiar event...
*January 12, 2014*

**Socials**

PLease help!!
*September 28, 2013*

**Socials**

1. A description of life in 17th century ENgland according to a member of the roundheads. 2. The roundheads views on civil rights. Thanks! :)
*September 28, 2013*

**3 grade math **

Use the digits 3, 7, 1, 5 to write a number that rounds to each of the following 2,000 3,500 6,000 7,400
*August 22, 2013*

**English**

I have to write an essay on a book I read, and I want the title of my essay to be something quoted from the book. But how would I write the title in MLA format; I can't put it in quotes can I? because wouldn't that indicate a chapter title or an article? If anyone ...
*August 18, 2013*

**Algebra **

On my last post I forgot to add that I need to know if they are inverses of each other.
*August 5, 2013*

**Algebra**

I did sorry about that but I have found the answer since then. I got it wrong when I submitted it but time was running out. However, I know the answer now but I still don't understand it at all.
*August 5, 2013*

**Algebra**

I have to solve an inverse function. f(x)=x+6 and g(x)=x+6 f(x)=1/4x,x is equal to or not equal to 0 g(x)=1/4x,x is equal to or not equal to 0 Please help me I have been on this one problem for hours and I can't get it. This one question will determine whether or not I ...
*August 5, 2013*

**math**

Katie Chalmers borrowed money from her credit union at 13.2% simple interest to buy furniture. If the loan was repaid in 2½ years and the amount of interest was $1,320, how much did Katie borrow?
*June 22, 2013*

**business math**

Interest= Principal x Rate x Time I=$230,000 x .13 x 30/360 I=$2491.666 Interest= $2491.67
*June 19, 2013*

**Hello? My math question was ignored?**

My math question was ignored!
*June 9, 2013*

**Math**

9(x+2)(x+1)-2(x+2)-4(x+1)=0 I'm in the middle of solving an equation. I know that you have to FOIL but how did they get 9(x^2+3x+2)-(4x+4)=0 ? I thought you distribute the 9 through (x+2)(x+1). and why is it (4x+4) instead of (4x-4) because -4 x 1 = -4 .... Please help me ...
*June 9, 2013*

**math**

no i did not
*June 6, 2013*

**math**

Universal Exporting has three warehouse employees: John Abner earns $422 per week, Anne Clark earns $510 per week, and Todd Corbin earns $695 per week. The company’s SUTA tax rate is 5.4%, and the FUTA rate is 6.2% minus the SUTA. As usual, these taxes are paid on the ...
*June 6, 2013*

**math**

Fran Mallory is married, claims five withholding allowances, and earns $3,500 (gross) per month. In addition to Federal income tax (FIT), social security, and Medicare withholding, Fran pays 2.1% state income tax, and ½% for state disability insurance (both based on her...
*June 6, 2013*

**math**

Mary Jo Prenaris is an office manager with gross earnings of $1,600 semimonthly. If her company switches pay schedules from semimonthly to biweekly, what are Mary Jo’s new biweekly gross earnings
*June 6, 2013*

**math**

Paul Warren is a self-employed mechanic. Last year he had total gross earnings of $44,260. What are Paul’s quarterly social security payments due to the IRS
*June 6, 2013*

**math**

Mitch Anderson is a security guard. He earns $7.45 per hour for regular time up to 40 hours, time-and-a-half for overtime, and double time for the midnight shift. If Mitch worked 56 hours last week, including 4 hours on the midnight shift, how much were his gross earnings
*June 5, 2013*

**math**

Barbara Sultan works 40 hours per week as a registered nurse. At the rate of $31.50 per hour, what are her gross weekly earnings
*June 5, 2013*

**Math**

Take 9,850 and multiply it by 6.2% you will get 610.70. then multiply 9,850 by 1.45% you will get 142.825. Add together the 610.60 + 142.825= 753.53 is the total that is withheld from Dans check.
*June 4, 2013*

**math**

Epicure Market prepares fresh gourmet entrees each day. On Wednesday, 80 baked chicken dinners were made at a cost of $3.50 each. A 10% spoilage rate is anticipated. At what price should the dinners be sold to achieve a 60% markup based on selling price
*May 30, 2013*

**math**

What was the original selling price of a treadmill currently on sale for $2,484 after a 20% markdown
*May 30, 2013*

**math**

If the markup of a fluorescent light fixture transformer is 120% based on the cost, what is the corresponding percent markup based on selling price
*May 30, 2013*

**math**

At The Luminary, the markup on a halogen light fixture is 50% based on selling price. What is the corresponding percent markup based on cost
*May 30, 2013*

**math**

Office Market is having a sale on printer paper. If you buy 2 reams for $8.99 each, you will get a third ream free. Calculate the markdown percent
*May 30, 2013*

**math**

The Flour Power Bakery makes 200 cherry cheesecakes at a cost of $2.45 each. If a spoilage rate of 5% is anticipated, at what price should the cakes be sold to achieve a 40% markup based on cost?
*May 30, 2013*

**Math**

13/52
*May 29, 2013*

**math**

A flower shop buys roses with a list price of $1,500. If the wholesaler offers trade discounts of , find the trade discount amount to the nearest penny
*May 24, 2013*

**math**

The Empire Carpet Company orders merchandise for $17,700, including $550 in shipping charges, from Mohawk Carpet Mills on May 4. Carpets valued at $1,390 will be returned because they are damaged. The terms of sale are 2/10, n30 ROG. The shipment arrives on May 26 and Empire ...
*May 24, 2013*

**math**

What is the net price factor for trade discounts of 25/15/10
*May 24, 2013*

**chemistry**

What is the balanced equation for a reaction of iron with chlorine?
*May 23, 2013*

**Calculus**

Yes, had just finished getting it! Thanks!
*April 25, 2013*

**Calculus**

U substitution on indefinite integral/antiderivative. (t^3+4)^-2 t^2 On this should I use u on the parenthesis and should I put this into a natural log?
*April 25, 2013*

**math**

hermione puts $1000 into an account on january 1, 2008. if the account is compounded continuously at a rate of 7.9%, in what month of what year will the account reach $100,000? Is the correct answer January,2069?
*April 23, 2013*

**math**

what is the graph of y=-16t^2+8t+70
*March 21, 2013*

**physics**

An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. (a) What is the electric field energy density at P? (b) A parallel-plate capacitor whose plates have area 0.110 m2 has a uniform electric field between its plates with the same ...
*March 8, 2013*

**math**

A penguin swimming with the ocean current in search of food takes 1 hour to travel 9 miles. Its return trip upstream to its starting point takes it 3 hours, What is the penguin's speed in still water? Thanks.
*March 6, 2013*

**math**

Hello! I would be really grateful if you could help me with this word problem. Here is the problem: In a cartoon, a malfunctioning cannon fires a hungry coyote towards the bottom of a cliff with an initial rate of 100 feet per second. If the cliff is 1250 feet tall, how long ...
*March 6, 2013*

**Math**

Hello there! Could You please help me with this Geometry word problem? Here's the problem: Helen painted a picture that was 10 inches longer than it was wide. When she framed the picture, the outside dimensions (that is, the length and the width) were each two inches ...
*March 6, 2013*

**Math**

Hello there! Could You please help me with this Geometry word problem? Here's the problem: Helen painted a picture that was 10 inches longer than it was wide. When she framed the picture, the outside dimensions (that is, the length and the width) were each two inches ...
*March 6, 2013*

**math**

7/8 + 1/10 find the sum or difference. write the snswer in simplest form
*March 4, 2013*

**Algebra**

How do I write an equation of a line that passes through the point (-28, -5) and is parallel to y= -5 45 X - _ __ 8. 2
*February 26, 2013*

**Algebra**

How do I write an equation of a line that passes through the point (-31,22) and is parallel to this equation: 16x + 13y= -210
*February 26, 2013*

**Algebra**

How do I write an equation of a line that passes through the point (-31,22) and is parallel to this equation: 16x + 13y= -210
*February 26, 2013*

**Math**

Next door neighbors Moe and Larry are using hoses from each of their houses to fill Moe's pool. They know it takes 12 hours using both hoses. They also know that Moe's hose, used alone, takes 40% less time than using Larry's hose alone. How much time is required to...
*February 11, 2013*

**Math**

Because of an anticipated rainstorm, the water level in a reservoir must be lowered by 1 foot. Opening spillway A lowers the level by this amount in 4 hours, whereas Opening spillway B does the job in 6 hours. How long will it take to lower the water level by 1 foot if both ...
*February 11, 2013*

**math**

a freight train is traveling 30mph. An automobile starts out from the same place 1 hour later and overtakes the train in 3 hours. What was the rate of the automobile?
*February 7, 2013*

**history**

In order to create heavy industries in Russia, Stalin had his five-year plans. To increase agricultural production in China, Mao had his... A. Great Cultural Revolution B. Red Guards C. Reeducation policy D. Great Leap Forward
*February 3, 2013*

**history**

The nations of the world that were formerly victims of imperialism and did not align themselves with either the West or the Communist powers are today called what? A. first world countries B. second world countries C. underdeveloped nations D. developing nations
*February 3, 2013*

**History**

After Clovis's death, real power in the Merovingian Dynasty was in the hands of who? A. the nobles B. mayors of the palace C. parish priests D. king's wife
*February 3, 2013*

**History**

thankssss
*February 3, 2013*

**History**

Who are the parties involved in this joint study? : It would be NASA and the International Space Station, right...?
*February 3, 2013*

**History**

Um.. Not sure.. It's not d, probably not a.. Is it b? That sounds most logical..
*February 3, 2013*

**History**

NASA, space shuttles, and the International Space Station are (a)all related to Cold War spy technology (b) joint scientific study and space exploration efforts (c) United States efforts to build anti missile defenses (d) belief in extraterrestrial life
*February 3, 2013*

**History**

The first European power to explore the coast of West Africa was A. England B. Portugal C. Holland D. France
*February 2, 2013*

**History**

Thank you for helping me FIND the answer, and not just giving it to me. That's very wise of you, and helpful to me as a student who needs to be capable of research.
*February 2, 2013*

**History**

The advantage of the Phoenician system of writing over the Chinese, Sumerian, and Egyptian was that it (a) used fewer sounds (b) used fewer pictures (c) used fewer symbols (d) none of the above
*February 2, 2013*

**History**

Thank you, again.
*February 2, 2013*

**History**

The Soviet Leader who did the most to end the Cold War was which of these? A. Joseph Stalin B. Nikita Khrushchev C. Leonid Brezhnev D Mikhail Gorbachev
*February 2, 2013*

**World History**

Thank you Ms. Sue
*February 2, 2013*

**World History**

The person who might be called the "father of the hydrogen bomb" is (a) Enrico Fermi (b) Robert Oppenheimer (c) Niels Bohr (d) Edward Teller
*February 2, 2013*

**World History**

How?
*February 2, 2013*

**World History**

During the European medieval period, there was no strong centralized government. However, advances were made in the areas of (a) art, science and communication, (b) agriculture, technology and ship design (c) medical knowledge (d) all of the above
*February 2, 2013*

**World History**

Arabs are joined together through (a) kinship through a male line (b) arranged marriages (c) kinship through a female line (d) agreements by kings
*February 2, 2013*

**chmisrty**

when a solution of Iron (II)ammonium sulfate was mixed with K4FE(CN)6, the precipitate was initially white but turned blue upon exposure to air. what happen to the Iron(II)ionwhen the precipitate turned blue
*January 25, 2013*

**Cultural Anthropology**

A Big Man’s position differs from a chief’s position is not based on wealth. is based on personal skills and charisma. is an ascribed status. is reinforced through supernatural authority. My answer is a ascribed status is this correct?
*January 20, 2013*

**Anthropology**

Mrs. Sue the answer should be deserts least likely
*January 20, 2013*

**Anthropology**

Pastoralism is the branch of agriculture concerned with the raising of livestock. It is animal husbandry: the care, tending and use of animals such as camels, goats, cattle, yaks, llamas, and sheep. so the answer is grasslands?
*January 20, 2013*

**Anthropology**

is my answer correct?
*January 20, 2013*

**Anthropology**

Is the answer Tropical Forests?
*January 20, 2013*

**Anthropology**

Which environment is least likely to be inhabited by pastoralists? (Points : 1) grasslands savannahs tropical forests deserts
*January 20, 2013*

**Computer Harware**

You have a single hard drive on your computer that contains two NTFS partitions. Your computer's operating system alerts you that the C partition is running out of room. Your E partition still has 75 gig of free space. What is the least intrusive way to alleviate this ...
*January 19, 2013*

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