Friday
December 19, 2014

Posts by nick


Total # Posts: 1,087

math
Emily spent 1/2 of her money at the store. Then she spent 1/2 of what was left at the bakery. next she spent 1/2 of what was left at the music store. She spent the remaining$6.00 at school. How much money did Emily start with?
December 9, 2014

trigonometry
At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle does the parent ...
December 7, 2014

physics
Atoms in a solid are not stationary, but vibrate about their equilibrium positions. Typically, the frequency of vibration is about f = 4.55 x 1012 Hz, and the amplitude is about 2.69 x 10-11 m. For a typical atom, what is its (a) maximum speed and (b) maximum acceleration?
November 30, 2014

Physics
A 2.00kg solid sphere of radius 5.00cm rolls down a 20 degrees inclined plane starting from rest. (a) What is the magnitude of the acceleration of the center of mass of the sphere? (b) How far down the plane does it roll without slipping in 1.00s?
November 29, 2014

Math
A bag contains 10 white balls and 6 yellow balls. We need to add 112 balls to the bag and keep the ratio the same. How many of each do we need to add. - What's the correct formula to use?
November 25, 2014

physics
In an effort to loosen the bolt on the wheel of a car, a man with a mass of 70kg steps on the end of a 50cm tire iron which is extending horizontally from the bolt. How much torque is he applying to the bolt?
November 23, 2014

Calculus Help
Ha.. I was just using a old fashion calculator and hoping I could do the rest in my head. But thanks I think I understand now. =D
November 16, 2014

Calculus Help
If f(x) = sin(7 − 5x), find f′(π), which is the derivative at π: −0.754 −0.657 0 0.657 3.770 I chose 0.657 ... I did not really get this exact answer, its just that while I was trying to figure this out my answer was actually 0.6978 but I just...
November 16, 2014

Economics
If stores are charging the same prices for their merchandise, what techniques might each one adopt to differentiate its products and services from the others? What kind of competition does this illustrate?
October 30, 2014

math
After the thousandth visitor, the rooms that the light switches are still on are the ones that the numbers are a perfect square. For example, room number 4, 9, 16, 25, and 36 will all be on.
October 20, 2014

AP Chemistry
Which of the following sets of quantum numbers are allowed for an electron in a hydrogen atom? a)n=3, l=0, ml=0 b)n=4,l=1,ml=-1 c)n=2,l=1,ml=-2
October 19, 2014

Chemistry
7. The specific heat of wood is 2.03 J/g∙°C. How much heat is needed to convert 550. g of wood at -15.0°C to 10.0°C?
October 18, 2014

Chemistry
Calculate the number of moles in 8.50x1015 atoms of 4He.
October 1, 2014

Algebra 2
Thanks I hope it's right
September 24, 2014

Algebra 2
Without graphing, identify the verx, axis of symmetry, and transformations from the parent function f(x)= absolute value of x y= 4- absolute value of x-2
September 24, 2014

Calculus
A sinusoidal section is to be built as part of a roller coaster track. The high point is h=27 m at a horizontal distance d=0 m. It has a low point at h=-3 m at d=50 m. a. Write an equation expressing h in terms of d. b. The lengths of the horizontal timbers used to build the ...
September 23, 2014

Calculus
Scorpion Gulch and Western Railway are preparing to build a new line through Rolling Mountains. They have hired you to do some calculations for tunnels and bridges needed on the line. You set up a Cartesian coordinate system with its origin at the entrance to the tunnel ...
September 23, 2014

Calculus
A spacecraft is in an elliptical orbit around the earth. At the time t=0 hours, it is at its apogee (highest point), d=1000 km above the earth's surface. It is at its perigee (lowest point) d=100 km above the surface 50 minutes later. a. Assuming that d varies sinusoidally...
September 23, 2014

Calculus
At a certain point on the beach, a post sticks out of the sand, its top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(pi/6(t-2)) where t is the ...
September 22, 2014

Algebra
Given a point (-2,5determine a point that satisfies the specified symmetry. 1. Origin 2. y-axis 3. x-axis 4. y=x
September 22, 2014

c
Lets think of the situation. It doesn't tell you how big the pool but you can make up a value. To make it easier use a number that it a multiple of both 4 and 9. In this case it would be 36. Okay say the pools need 36 gallons of water to be full. To find the rate for each ...
September 16, 2014

Physics
A light bulb is placed 21.7 cm in front of a concave mirror. When the concave mirror is replaced by a plane mirror in the same location, the bulb's image moves 4.60 cm closer to the mirror. Calculate the focal length of the concave mirror.
September 11, 2014

spanish please check!
Form complete sentences using the information provided. Use the preterite tense of the verb. 1. ir / al / semana / pasada / yo / dentista / la ______________________________________________________________ 2. parque / Pablo / y / correr / perro / su / por / el ...
August 25, 2014

spanish please check!
Yo fue al dentista la semana pasada Pablo corrio el perro y su por parque ellos leyo periodicos tres cada dia Dona Rita supo la historia de nunca la verdad
August 25, 2014

Spanish
complete sentences using the information provided. Use the preterite tense of the verb. 1. ir / al / semana / pasada / yo / dentista / la 2. parque / Pablo / y / correr / perro / su / por / el día / leer / ellos / periódicos / tres / cada 4. nunca / la historia...
August 25, 2014

Algebra
If p(x) is a polynomial and is divided by (x-k) and a remainder is obtained, then that remainder is p(k). If the quadratic p(x)=x^2-3x+5 gives the same remainder when divided by x+k as it does when divided by x-3k find the value of k, k is not equal to 0. This is the answer ...
August 2, 2014

Logarithms
Ah I get it now thank you! :)
August 1, 2014

Logarithms
How is log(a/bc) the same as log(a) - log(b) - log(c). Should it not be '+ log (c)'?
August 1, 2014

Spanish use of Imperfect Verbs
Sorry we are supposed to write about our vacation in an overseas country using past,present and future tenses. As long as we use the Imperfect, Preterite etc. in the right places, it's fine.
July 26, 2014

Spanish use of Imperfect Verbs
Here's my edited version: ¡Hola mis amigos y familias, me llamo Nick y soy en Miravida Soho en Buenos Aires, la ciudad mayor de la Argentina! Yo he estado en Sudamérica con mi familia pero no he ido nunca a Argentina. Mis compañeros de viajes vieron de ...
July 26, 2014

Spanish use of Imperfect Verbs
And I would like to give you some advice as 'me gustaría os dar/daros algunos consejos'?
July 26, 2014

Spanish use of Imperfect Verbs
Thanks for all the help! Just a quick question, would you say "But before I finish" as 'pero antes yo termino' or is there another way?
July 26, 2014

Spanish use of Imperfect Verbs
Can someone please check if I've used the Imperfect correctly? Thank You :) ¡Ola mis amigos y familias, me llamo Nick y soy en Miravida Soho en Buenos Aires, la ciudad mayor de Argentina! Mis compañeros de viajes y yo pasamos un buen rato hoy. En la mañ...
July 26, 2014

Spanish
Can someone please just proof-read this? Especially the use of the imperfect and por/para. And don't worry about punctuation :) ¡Ola mis amigos y familias, me llamo Nick y soy en el hotel primero de Buenos Aires, la ciudad mayor de Argentina! Mis compañeros de...
July 25, 2014

Books
I didn't even think that theme was a sociological one (I'm still only in high school), that theme is just something I thought up of. And yes, my teacher said we are allowed to do fictional texts. In fact, any text at a high enough reading level is appropriate. I don&#...
July 17, 2014

Books
They're actually visual texts. One is the TV series Marvel's Agents Of Shield and the other one is the movie Dawn of the Planet of the Apes. Our teacher said to have a mixture of both written and visual but I can't think of any that would include that theme.
July 17, 2014

Books
I'm doing a paper in which I have to write about 4 texts and their connection to a theme. I already have 2 and am looking for 2 more texts. My theme is "How one can never lose his roots, no matter how much influence society has on him", or something similar. ...
July 17, 2014

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

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