Tuesday

October 13, 2015
Total # Posts: 1,154

**statistics**

assuming that you wished to have the highest possible score on an exam relative to ht e other scores, would you rather have a score of 70 on a test with a mean of 60 and a standard deviations of 5.2 or a score of 81 on a test with a mean of 79 and a standard deviation of 7.1?
*July 14, 2014*

**mqr/117**

Select the x-coordinate of the vertex of the parabola defined by the function f(x)=5x^2+3x+1
*July 13, 2014*

**Spanish**

Next week I will be in Mendoza, after spending some time in Salta. There I will drink some of their famous wines and see the historical sights. Then I’ll come back home from El Plumerillo Airport! Argentina is a beautiful country, but there can be thefts and hooliganism. ...
*July 7, 2014*

**Spanish**

Sorry for the late reply. This is the stuff I want to talk about. I realize this is a lot so some bits will be cut out. I’m in Salta now on day 5 of my 11-day tour of northern Argentina. I arrived at Rio Gallegos International Airport early Monday morning and got picked ...
*July 7, 2014*

**Spanish**

Thanks but that's just what we need to include. I was wondering if someone could provide me with sentence starters in spanish because we haven't worked on this in class at all, so they would at least give me an idea as to how to write my speech
*July 7, 2014*

**Spanish**

Our spanish class has been given a 1-minute speech to write up over the holidays, but our teacher hasn't provided us with any extra material we can use. I was wondering if you could give me sentence starters etc. to help me work on it. Here is the scenario: (my chosen ...
*July 7, 2014*

**mat/117**

Select the value of x that is the solution for the equation 6/x=7/x+3
*July 6, 2014*

**math/117**

An object 5.7 feet tall casts a shadow that is 17.1 feet long. How long in feet would the shadow be for an object which is 19.5 feet tall?
*July 6, 2014*

**accounting**

The formula for computing additional paid-in capital in excess of par is shares of stock times
*June 21, 2014*

**math!!**

A 9-pack of toy cars costs $8.58. What is the unit price, rounded to the nearest cent?
*June 3, 2014*

**math**

6b/3a+b/a
*May 31, 2014*

**algebra**

A store sells mixtures of almonds and cashews for $6.50 per pound. Peanuts sell for $2.95 per pound and cashews sell for $7.95. How many pounds of each should be used to make 80 pounds of this mixture?
*May 28, 2014*

**Spanish**

Ok thank you :)
*May 23, 2014*

**Spanish**

First of all, thanks so much for all your tips :). Secondly, it's not an essay, it's an oral exam whereby we speak to our partners without any cues or notes. Our teacher told us to revise the preterite, though I don't quite understand the differences between this ...
*May 23, 2014*

**Spanish**

Hi, yes I knew about the accent marks and punctuation, I just didn't have the time to put them in. Sorry, I should have pointed that out earlier. Also, we are supposed to include some small talk, so I was thinking we could talk about the weekend by asking something like &#...
*May 23, 2014*

**Spanish**

Sorry I just realized it's a bit hard to see who's talking.
*May 23, 2014*

**Spanish**

This is my piece that I've been working on with my classmate. It's not finished though, but this will not be the exact conversation we'll be having. The actual assessment is an impromptu style conversation. Hola! Que pasa? Bien. Y tu? Como estas? Bien, bien, muy ...
*May 23, 2014*

**Spanish**

Hi, I would like some tips on what to say when you're talking to a friend about what you're packing & need to buy to go on a trip. This is a conversational piece where it is required that we speak out of context as well (talking about the weekend, activities planned in...
*May 23, 2014*

**Global History**

If you google "Mrs. Sita’s Global Review Packet" it should be the 1st link which is a .pdf. The first page asks about the Neolithic Revolution and Ancient Civilizations.
*May 4, 2014*

**Global History**

No, it doesn't let me post links. Here. Remove the parenthesis from this link: johnbowne(((.)))org/ourpages/auto/2011/1/31/49875088/Global_Regents_Review_Pack__blank_(((.)))pdf
*May 4, 2014*

**Global History**

Replace where it says " DOT " with a period "."
*May 4, 2014*

**Global History**

I need answers to the questions in the link above.
*May 4, 2014*

**Global History**

Yes! I have my facts right! Can you help me find answers then?
*May 4, 2014*

**Global History**

Ms. Sue, this is a website dedicated to helping people cheat on their homework. I know my stuff, but this is too long to get finished in such a short time. I need an answer key.
*May 4, 2014*

**Global History**

Ms. Sue, It's not a test, it's a review packet that was assigned for homework.
*May 4, 2014*

**Global History**

I need answers for "GLOBAL HISTORY REGENTS REVIEW" packet. Associated names are Mr. Moeller and Mrs. Sita. I can't find answers anywhere. The packet can be found blank online here: johnbowne DOT org/ourpages/auto/2011/1/31/49875088/...
*May 4, 2014*

**history**

i need to build a visual for civil war prisoner of war
*May 1, 2014*

**Geometry**

hey im in connections? did u get help im stuck on it
*May 1, 2014*

**NATURE OF ELECTRICITY**

If a charged sphere is brought close to a rod as shown in Figure A, the pairs of pith balls suspended at the ends of the rod will as the figure im reading is showing there is a charged sphere to the left then a induced charged on the rob which the pith balls are hanging from A...
*April 24, 2014*

**Math**

An electronics store usually sells 18 remote control devices per week at a retail price of $12.49. This week the manager put the remotes on sale for a markdown of 20%, and sold 25 of them. How much more revenue was earned this week by having the sale?
*April 23, 2014*

**math!!**

Roy Landers bought 3,000 shares of stock for $59 per share. Six months later he sold the 3,000 shares of stock for $75 per share. If the stockbroker's commission was $975, how much profit did Roy make on the transaction?
*April 23, 2014*

**math**

brain cut an extra large round pizza into 12 pieceas .Seven of then were eaten. WQhay angle measure of pizza is left
*April 22, 2014*

**Math**

Suppose that è is an angle in standard position whose terminal side intersects the unit circle at ((-15/13),(12/13)). Find the exact values of cscè, tanè, and sinè.
*April 17, 2014*

**Math**

The yearly returns of a stock are normally distributed with a mean of 5.1% and standard deviation of 2.7%. Find the probability of a yearly return being greater than 6%.
*April 15, 2014*

**chemistry**

Thank you :)
*April 12, 2014*

**chemistry**

1. Calculate pH of an acetate buffer containing 27.5 mM acetic acid (pKa is 4.74) and 50 mM sodium acetate. When a 30 mM aq solution of sodium acetate was prepared in the lab it had a pH of 8.8. Calculate the amount of acetic acid (in g) to be added to 0.5 L of this sodium ...
*April 12, 2014*

**Math**

5x^4-41x^3-87x^2-31x+10=0
*April 10, 2014*

**physic**

how many kcal of heat must be withdrawn from 4.56 kg of steam at 125 degrees C to change it to ice at -44.5 degrees C???
*April 9, 2014*

**physics**

how many Btu of heat are required to melt 8.35 lb of ice at 32 degrees F
*April 9, 2014*

**Need help on Physics!!**

Three uniform spheres are fixed at the positions shown in the diagram. Assume they are completely isolated and there are no other masses nearby. (a) What is the magnitude of the force on a 0.20 kg particle placed at the origin (Point P)? What is the direction of this force? (b...
*March 31, 2014*

**Please help me!!!!!**

Some fishing line is made out of nylon with Y =3.0!109Pa and breaking stress 7.7!107 Pa . It is 5.0 m long, you are holding one end, and it hangs down vertically. (a) When a 3.0-kg fish is attached to the bottom end, the fishing line elongates by 1.0 cm. What is its cross ...
*March 31, 2014*

**Another Physics**

At some point in the combustion cycle of an engine, the temperature of a combusted air-fuel mixture is 582 degrees Celsius. Given that the pressure in the mixture is 6.2 bar, determine the density of the mixture (in kilogram per cubic metre).
*March 28, 2014*

**physics**

At some point in the combustion cycle of an engine, the temperature of a combusted air-fuel mixture is 582 degrees Celsius. Given that the pressure in the mixture is 6.2 bar, determine the density of the mixture (in kilogram per cubic metre).
*March 27, 2014*

**physics**

A typical volume of a modern hot air balloon is 2500 cubic metres, and a typical maximum temperature of the hot air is 120 degrees Celsius. Given these figures, and an outside air temperature and density of 15 \(^{\circ}C\) and 1.225 \(kg/m^3\) respectively, compute the ...
*March 27, 2014*

**physics**

Suppose that, on a day when the outside temperature is 15 degrees Celsius, we fill a balloon with pure nitrogen gas, of which the molar mass is 28 grams per mole. Now suppose that we want to heat up a second (equally large) balloon containing air, such that it generates the ...
*March 27, 2014*

**physics**

Some say that the hot air balloons with which the Montgolfier brothers performed their first flight had a volume of 1700 cubic metres and could lift 780 kilograms (that includes the balloon, basket and payload). Assume that the balloon took off on a day when the sea level ...
*March 27, 2014*

**physics**

Thank you steve , please how do you know that each ballon occupies .01617m^3, please if possible give more precisions. I find 0,002746744 which doesn´t make sens to me. How do I make it ? thanks
*March 26, 2014*

**physics**

Thank you steve , please how do you know that each ballon occupies .01617m^3, please if possible give more precisions.
*March 26, 2014*

**physics**

Suppose that a party balloon is spherical, has a radius of 16 centimetres and is filled with helium. Furthermore suppose that we do our experiment under standard atmospheric conditions, when the air density is \(\rho = 1.225 kg/m^3\). How many of these balloons should a 75 ...
*March 26, 2014*

**physics**

Others say that the balloon was 23 metres high and 14 metres wide. Calculate the temperature of the air in the balloon (in degrees Celsius) for this situation as well
*March 26, 2014*

**Math**

Solve the problem. Round to the nearest cent. Joan wants to have $250,000 when she retires in 27 years. How much should she invest annually in her annuity to do this if the interest is 7% compounded annually? A) $1861.10 B) $3356.43 C) $2672.15 D) $937.86
*March 26, 2014*

**math**

2 trains leave the station at 325 one going east at 66 miles per hour the second going west at 82 miles per hour they are 111 miles apart what time is it
*March 25, 2014*

**math, economics**

Consider a market in which consumption of the good being traded generates a positive externality. There are 100 identical consumers, each with a utility function given by 1/2√q+m+√G, where G denotes the total level of consumption in the market. The good is sold by ...
*March 24, 2014*

**Linear Algebra**

Ok. I changed. number two to a number three to b
*March 18, 2014*

**Linear Algebra**

SO is all of them correct?
*March 18, 2014*

**Linear Algebra**

(-5.1)^0 a. 1 << b. 0 c. -5.1 d. -1 3g^-2 b^2 a. 3b^2/g^2 b. 3g^2 b^-2 <<< c. 3gb^-4 d. b^2/3g^2 3/g^-2 h^3 a. 3/g^2 h^3 << b. 3g^2/h^3 c. 6g/h^3 d. 3/gh
*March 18, 2014*

**Math**

In the Math Virtually Everywhere project you completed for this module, you learned all about cell phone plans. The best cell phone plan for a customer can vary based on how much they plan to talk. The plan that is the best deal for one customer may not be the best deal for ...
*March 14, 2014*

**Calculus**

A lighthouse is located on a small island 4 km away from the nearest point P on a straight shoreline and its light makes three revolutions per minute. How fast is the beam of light moving along the shoreline when it is 1 km from P? (Round your answer to one decimal place.)
*March 11, 2014*

**Calculus**

Two people start from the same point. One walks east at 5 mi/h and the other walks northeast at 7 mi/h. How fast is the distance between the people changing after 15 minutes? (Round your answer to three decimal places.)
*March 11, 2014*

**Math**

On Monday, Casey ran 5 miles. On Tues, she ran three and three fifths miles. How much further did she run on Mon than Tues? Then, on Wednesday she ran four and one half miles. How much further did she run on Wed than on Tues? Could someone show me how I would figure this out? ...
*March 9, 2014*

**Math**

A to B is 15 miles, B to C is 25, C to F is 21 F to E is 22 E to D is 14, D to B is 11 D to A is 10, A to B is 15 Each town (letters) must be connected to at least one other town. Towns A to F are to be connected. Calculate the minimum length of cable required...
*March 5, 2014*

**NEED HELP ASAP !!**

it would be 27,686 ft in difference
*March 4, 2014*

**math**

an initial population of 865 quail increases at a annual rate of 15%. write an exponential function to model quail population
*February 20, 2014*

**Life Orientation**

*cough* connections *cough* academy *cough,speaks with haste* im reporting you for these MAJOR CHEATS*cough* But really,why you getting all these free answers? You're never gonna succeed in life if you're living off of others smarts. And even when giving others the ...
*February 12, 2014*

**math**

Ruth makes a scale drawing of her room. She uses scale 3/2 in. : 1ft. In the drawing the dimensions are 18 in by 24 in. What are actual dimensions of room.
*February 10, 2014*

**BIOLOGY**

MONERA!!!!
*February 6, 2014*

**Math**

The white house, built 1792, is the oldest federal building in washington DC . The building has undergone extensive remodeling over the years. The main building is 4 stories high and is about 170 ft long by 85 ft wide. If a replica of the white house were made with a length of...
*January 29, 2014*

**Physics**

A stone is thrown directly upward from rest from ground level with initial speed 20.0 m/s; 1.50 s after that, a second stone is thrown directly upward from ground level with initial speed 18.0 m/s. (a) When are the stones at the same height? (b) What are the velocities of the ...
*January 26, 2014*

**Statistic **

Suppose you roll a die 10 times and record the proportion of sixes. Suppose you then conduct a simulation of this experiment, first 100 times, then 1000 times, and draw one histogram of the proportion of sixes found after 100 simulations and a second histogram of the ...
*January 26, 2014*

**math**

a dollar is to a dime as a meter is to a..
*January 22, 2014*

**math**

a dollar is to a dime as a meter is to a..
*January 22, 2014*

**physics**

An animal-rescue plane ﬂying due east at 40 m/s drops a bale of hay from an altitude of 73 m . The acceleration due to gravity is 9.81 m/s. If the bale of hay weighs 177 N , what is the momentum of the bale the moment it strikes the ground? part 2 At what angle of ...
*January 3, 2014*

**physics**

An animal-rescue plane ﬂying due east at 40 m/s drops a bale of hay from an altitude of 73 m . The acceleration due to gravity is 9.81 m/s^2. If the bale of hay weighs 177 N , what is the momentum of the bale the moment it strikes the ground? Please help!
*January 2, 2014*

**math**

Forces are applied to two ropes which are attached to the bumper of a stalled car. If F1 = 100 lbs at an angle of θ1 = 58 degrees, find the necessary magnitude and direction of force F2 so that the resultant force is 190 lbs in the direction shown.
*December 6, 2013*

**math**

Two squirrels are sitting on a rope as shown. The tension in segment BD is TBD = 6.3 lb at an angle of ϕ = 47 degrees. The tension in segment AB is TAB = 5.229 lb. Find the weight of the squirrel at B and the angle α.
*December 6, 2013*

**math**

A farmer's tractor has gotten stuck in a muddy pasture. To try to free the tractor, the farmer ties a rope to a tree and the front of her tractor, then pulls sideways in the middle of the rope with a force of F = 510 N. Angles of θ = 5 degrees are formed as shown. ...
*December 6, 2013*

**MATH**

The table that follows shows the relationship between the boiling temperature of water (°F) and the altitude (per thousand feet): Boiling Point of Water Altitude (1000 ft.) Temperature (°F) 8 197.6 4.5 203.9 3 206.6 2.5 207.5 Gemma and Tessa need to find the rate of ...
*December 1, 2013*

**algebra 2**

The table that follows shows the relationship between the boiling temperature of water (°F) and the altitude (per thousand feet): Boiling Point of Water Altitude (1000 ft.) Temperature (°F) 8 197.6 4.5 203.9 3 206.6 2.5 207.5 Gemma and Tessa need to find the rate of ...
*November 30, 2013*

**algebra 1**

The table that follows shows the relationship between the boiling temperature of water (°F) and the altitude (per thousand feet): Boiling Point of Water Altitude (1000 ft.) Temperature (°F) 8 197.6 4.5 203.9 3 206.6 2.5 207.5 Gemma and Tessa need to find the rate of ...
*November 29, 2013*

**algebra 1**

Ashley is the manager of a theater. She has $240 to spend on posters to advertise a new play. If she buys small posters only, Ashley can print 48 posters for $240. If she buys large posters only, Ashley can print 30 posters for $240. A. Write an equation that can be used to ...
*November 29, 2013*

**Math **

what is the unit rate of 5 divided 12 1/2 and how do you solve it ?
*October 29, 2013*

**Statistics**

Wow! Thank you for the help! Also, wouldn't the 90% confidence interval be 9.6% to 12.8%? Also, would the margin of error be 3.2 or 1.6? Thank you!
*October 27, 2013*

**Statistics**

Direct mail advertisers send solicitations (that is "junk mail") to thousands of potential customers in the hope that some will buy the company's products. The response rate is usually quite low. Suppose a company wants to test the response rate for a new flyer ...
*October 27, 2013*

**Statistics**

We have calculated a 95% confidence interval for a proportion and would prefer the confidence interval to be more precise, that is narrower. Using the same sample, we can narrow the confidence interval using which of the following? A) increasing the confidence level B) ...
*October 27, 2013*

**Statistics**

In a poll of voters in a certain city, 32% said that they backed a bill which would limit growth and development in their city. The margin of error was reported as 1.7% with 90% confidence. Determine the bounds for the confidence interval. A) (88.3%, 91.7%) B) (30%, 34%) C) (...
*October 27, 2013*

**Statistics**

Which of the following is not an assumption or condition that needs to be checked for the one-proportion z-interval? A) Success/Failure Condition B) > 10% condition C) Independence D) < 10% Condition E) Randomization Is the answer C?
*October 26, 2013*

**Statistics**

A study of 902 decisions (to grant parole or not) made by the Nebraska Board of Parole produced the following 95% confidence interval: (56.1%, 62.5%) What is the margin of error? A) 1% B) 6.4% C) 59.3% D) 3.2% Is the answer C?
*October 26, 2013*

**Chemistry**

what's the density of a cube of an unknown substance if mass is 45.2g and the side of a cube is 3.2cm?
*October 24, 2013*

**algebra**

a 9 foot board is cut into two pieces .one is 3.5 feet longer than the other. how long is the longer piece?
*October 24, 2013*

**Science**

A rock with a mass of 0.3 kg has a kinetic energy of 43.2 j when thrown. What was the speed at which it was thrown?
*October 14, 2013*

**Science**

A boy standing on a high diving board has a mass of 45 kg and a total gravitational potential energy of 2700 j. How high is the diving board? What is the answer to this question and how did you come up with the answer.
*October 14, 2013*

**science**

What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA–, A2–) at pH 8.67? The acid dissociation constant values for piperazine are Ka1 = 4.65×10–6 and Ka2 = 1.86×10–10.
*October 6, 2013*

**Math Calculator Question**

How would I plug the following formula in a TI-30X calculator: P(5)= (10 C 5)(0.20^5)[0.80^(10-5)] When I try to do it, I get 0.000104858, but that is not the correct answer.
*October 6, 2013*

**science **

You prepare a buffer solution from 10.0 mL of 0.100 M MOPS (3-morpholinopropane-1-sulfonic acid) and 10.0 mL of 0.079 M NaOH. Next, you add 1.00 mL of 7.15 × 10-6 M lidocaine to this mixture Denoting lidocaine as L, calculate the fraction of lidocaine present in the form LH
*October 6, 2013*

**Physics**

If a car is going .197 meters per second, how long will it take to go 5 kilometers (assuming the ground is perfectly flat).
*October 6, 2013*

**Statistics**

A manufacturer ship toasters in cartons of 10. In each carton, they estimate a 20% chance that one of the toasters will need to be sent back for minor repairs. What is the probability, that in one carton there will be 5 toasters that need repair? I have no idea on where to ...
*October 5, 2013*

**Statistics**

A small software company bids on two contracts. It anticipates a profit of $60,000 if it gets the larger contract and $25,000 if it gets the smaller contract. The company estimates that there is a 32% chance it will get the larger contract and a 62% chance it will get the ...
*October 5, 2013*

**Statistics**

The soccer team's shirts have arrived in a big box and people start grabbing them. The box contains 7 medium, 12 Large, and 11 extra-large shirts. What is the probability that the first 4 shirts are all extra large? I have been struggling with the problem for an hour and ...
*October 1, 2013*

**English/ Writing**

from what my notes say - this is going to be an attempt to create integration through the use of a new term/ concept that either combines disciples or some aspect of the disciplines.
*September 29, 2013*