Sunday

June 26, 2016
Total # Posts: 1,014

**Science**

What are the advantages and disadvantages of Mathematical model - disadvantage: it often cannot account for all possible factors Advantage to a mathematical model is it can be applied to categories of any size and can predict complex events Physical Model - Disadvantage: they ...
*September 28, 2015*

**calculus**

10. A military jet flies horizontally with a velocity of 450 m/s and 20,000 m above the ground. When the jet is straight above an artillery gun a shell is fired. Assuming the shell hits the jet. a. Calculate the horizontal component of the initial velocity of the shell. b. ...
*September 20, 2015*

**math**

change fraction 3/4 to a percent
*September 19, 2015*

**Algebra**

Use factoring to solve 5^4-8x^2=0 Not sure where to begin I got x^2(5x^2)-8=0
*July 27, 2015*

**Math**

1÷5 (45y+20)+3÷4 (12y=24)=19 Find solution set (9y=14)+(9y=18)=19 18y = 33÷8
*July 17, 2015*

**maths**

A can is 12cm high and diameter 8cm. Using the formula v =TT how much liquid is in the can
*June 16, 2015*

**Integers**

At 5:00 AM the temperature was 18 degrees Celsius. At 3:00 PM the temperature was 1 degree Celsius higher. What was the temperature at 3:00 PM?
*May 22, 2015*

**algebra**

a motorist left a city for a 295 mile. 7 hour trip. for the first part of the trip, the average speed was 40mph. for the remainder of the trip, the average speed was 55mph. How long did the motorist drive 55mph
*May 16, 2015*

**Economics/Marketing**

How are target audiences and communications strategies developed for conservation projects?
*May 13, 2015*

**Math**

Insert parentheses to make this equation correct: 7 - 6 x 7 / 5 + 7 = - 43.4 / is used for division sign
*May 7, 2015*

**Math**

He was able to do 8 out of 10, which would be 8/10, which could be further reduced to 4/5
*May 6, 2015*

**C++ Programming**

I am so bad at programming and after this class I am done with it and changing my program! I don't even know where to start! It says demonstrate array of Struct,2 dimensional arrays and sorting routine. A trucking company charges the customers a fixed amount per pound, ...
*April 27, 2015*

**Chemsitry**

What is the pH of the buffer solution that results when 58.50 g of sodium acetate (NaCH3CO2) (Formula Mass = 82.02 g mol-1) is added to 1 litre of 0.45 mol L-1 acetic acid (CH3CO2H) ? Data: Ka for CH3CO2H = 1.8 x 10-5
*April 20, 2015*

**statistics**

Find the Z-score that separate the middle 63% of the distribution from the area in the tails of the standard normal distribution
*April 19, 2015*

**statistics**

If you flip a coin three times, the possible outcomes are HHH, HHT, HTH, HTT, THH, THT, TTH, TTT. What is the probability of getting at least two tails? A. 1/2 B. 2/3 C. 3/4 D. 4/9 mY ANSWER IS A
*April 18, 2015*

**math**

i ALSO CAME UP WITH A. BUT IM NOT SURE
*April 18, 2015*

**math**

Jody checked the temperature 12 times on Monday, and the last digit of the temperature was odd six times more than it was even. On Tuesday, she checked it 18 times and the last digit was odd eight times more than it was even. Determine which series is closer to the 50/50 ratio...
*April 17, 2015*

**English**

"The night was gone. The morning star was shining in the sky. I too had become a completely different person. The student of the Talmud, the child that I was, had been consumed in the flames. There remained only a shape that looked like me. A dark flame had entered into ...
*April 16, 2015*

**Statistic**

The average number of houses sold by a company is 2 houses per day what is the probability that exactly 3 houses will be sold in one week
*April 8, 2015*

**English**

I am having to come up with a thesis statement About dreams. This is what I came up with but don't know how I should proceed with the essay. Dreams are like the housekeepers of the mind. At the end of the day they sweep out the trash like the sensory input of our busy days...
*March 29, 2015*

**English**

I need a good thesis statement about dreams
*March 27, 2015*

**math**

A baseball team has home games on Friday and Sunday. the two games together earn $3391.00 for the team. Fridays game generates $401.00 less than Sundays game. How much money was taken in each game?
*March 25, 2015*

**math**

Seven people rowed 12 miles downstream with the current in 1.5hrs. Coming back upstream against the current covered the same distance but took 4 hours. Find the people rowing rate in the still water and the rate of the current
*March 20, 2015*

**Algebra**

The radiator in a car is filled with a solution of 75 per cent antifreeze and 25 per cent water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50 per cent antifreeze. If the capacity of the raditor is 3...
*March 10, 2015*

**physics**

if a monochromatic beam of light with a wavelength of 590 nanometers is traveling through air then enters a region of space where the index of refraction is 1.5, what will the light beam do? increase, decrease, or stay the same?
*March 8, 2015*

**Math**

125
*March 6, 2015*

**Math**

What is the total of 7 pieces of wire, each wire is 3/8 of a foot long?
*February 19, 2015*

**math**

THe area of a parallelogram is 594, and the lengths of its sides are 32 and 46. Determine, to the nearest tenth of a degree, the measure of the acute angle of the parallelogram
*January 29, 2015*

**english**

Do you understand?
*January 16, 2015*

**english**

Okay I can't answer your question but I will try to help you understand, okay? first I will give you an example of what each appeal is (emotion and reason), appeal to emotion involves trying to convince someone based on feelings. To apply this to our argument of lowering ...
*January 16, 2015*

**english**

Ok, I think i can help you what do you not understand about this? I can't just write down the whole answer for you, then you wouldn't learn, it's best if I help you understand this so you won't need help in future assignments.
*January 16, 2015*

**Math**

Powerboattakes30minutes to travel 10miles downstream. The return triptakes50 minutes. What is th speed othe current
*January 15, 2015*

**Algebra**

two even integers such that two times the first plus four times the second is 56. let x represent the first even number
*December 23, 2014*

**Physics**

Knowing the temperature at the surface of the Earth to be 72 F, find the temperature at the surface of Venus.
*December 10, 2014*

**math**

how do you do order of operations? exp. 5x5-5+5
*November 20, 2014*

**maths**

a moon rock sample was 300g when rounded to the nearest 100g. Its exact mass was also a multiple of 10. What mass could the moon rock sample have been?
*November 17, 2014*

**algebra**

706.5/3.14= 225 225(squared)=15 r=15
*November 11, 2014*

**Social studies**

What are religious ceremonies in Islam
*October 31, 2014*

**Social Studies**

Who founded (started) the Christian religion? Answer: Jesus and his Apostles
*October 30, 2014*

**Algebra**

write the equation for each of these segments. (5,7) (7,4) Y = mx + b 7 = -3/2(5) + b 7 = -1.5 + b b = 8.5 Y = -3/2(5) + 8.5 Y = -15/2 + 8.5 -15/2 + 8.5/1 -15/2 + 17/2 2/2 = 1 (-5,4)(-5,7) Y = mx + b ***Don't know how to solve this one since it is undefined 4 = 3/0(-5) + b...
*October 30, 2014*

**physics**

a student leaves home and walks 100 m in a northerly direction. he then walks in a direction of 45 degree north of east for 50 m to reach school. calculate the displacement graphically. choose a scale to draw the diagram
*October 26, 2014*

**physics**

draw the following position vectors, find the displacement and present it on diagram. di=2 m df=5m di=3m df= -4m
*October 26, 2014*

**physics**

draw a particle model and a motion diagram for A bike travels at constant speed of 4.0 m/s for 4 s then slow down to come at rest in 3 s.
*October 26, 2014*

**algebra**

Ulani has an older siste and a younger sister. Her older sister is one year more than twice Ulani's age. Ulani's younger sister is three years younger than she is. The sum of their ages is 26. Find Ulani''s age 2x + 1 - 3 = 26
*October 22, 2014*

**math**

If every 1 cm is 5.5 meters, then we should divide 28 by 5.5. You should get the answer 5.090... But we'll round that down to 5. So 28 meters should be 5 cm in scale.
*October 22, 2014*

**Social Studies**

Which factor best explains the climate distribution of northern Brazil? Being located at tropical latitudes The affects of the flow of cool ocean currents Distance from the continental shelf Elevation above sea level Since it is located near the equator the factor that best ...
*October 22, 2014*

**Social Studies**

When do you expect to find more surface run-off than soil infiltration? When water levels in rivers and streams are low When soil permeability is equal to the rate of precipitation When flooding occurs during a rainstorm When there are extensive summer drought conditions ...
*October 22, 2014*

**Social Studies**

Since it is located near the equator the factor that best explains the climate distribution wouid be Being located at tropical latitudes
*October 22, 2014*

**Social Studies**

Which factor best explains the climate distribution of northern Brazil? Being located at tropical latitudes The affects of the flow of cool ocean currents Distance from the continental shelf Elevation above sea level
*October 22, 2014*

**Social Studies**

One reason for the difference between average temperatures in Rome when in Jan. the average temperature is 11 degrees Celsius and July average degree is 30 degree Celsius is: The amount of carbon dioxide present in the atmosphere The tilt of the Earth of its axis The tidal ...
*October 22, 2014*

**statistics**

The p value is the: a. probability with which a test statistic would occur if the research hypothesis were true. b. probability with which a test statistic would occur if the null hypothesis were true. c. cutoff probability at which a test statistic is considered extreme. d. ...
*October 21, 2014*

**math**

Select the appropriate values of x that are solutions to f (x)=0, where f ( x ) =-7x^2+4x+9
*October 21, 2014*

**algebra**

you want to build a playhouse for your sister in your backyard. You have the blue print which show the playhouse is 13 feet long and 12 feet wide. you want to change the dimension such that the lenght will be decreased and the width will be increased by the same value. a) ...
*October 15, 2014*

**algebra**

for the period 1990-2003, the amount of biscuits and pasta y(in thousands of tons) imported to the united states can be modeled by the function: y=1.36x^2+27.8x+77 how many tons obiscuits and pasta were imported to the states in 1999? in which year was the maximum imported? ...
*October 14, 2014*

**Math**

Find the Synthetic Division: (10x^4-50x^3-800)/(x-6)
*October 13, 2014*

**Algebra**

This is exactly the word problem that was given to me by my teacher whom is a coach if I might add.
*October 12, 2014*

**Algebra**

The velocity of a ball thrown in the air is 72ft Per second. The height of the ball after t seconds Is represented by the equation H = 72ft t - 62t^2. Describe the dependent variable, the domain and range. Honestly I have to say I am lost 72 + 72ft - 256 = ? 72 + 184t =0
*October 12, 2014*

**Algebra**

The function f(x) = 3x describes the amount Of money a club will earn for wrapping x presents. They only have enough paper to wrap 1000 presents. X = 1000 Y = 3x What would the dependent variable be? Domain and range using appropriate notation Range : (3x, ?) Domain: (1000, ?)
*October 12, 2014*

**Algebra**

The function f(x) = 3x describes the amount Of money a club will earn for wrapping x presents. They only have enough paper to wrap 1000 presents. 3 x 1000 = 3000 dollars for wrapping presents ?
*October 12, 2014*

**Algebra**

The surface area of a cube can be found using the formula A = 6s^2 where A represents the surface area of the cube and s represents the length of one edge. My teacher wants me to draw a cube that has a length of at least 5 inches. She also wants to know the independent ...
*October 12, 2014*

**algebra**

Calvin mixes candy that sells for $2.00 per pound with candy that costs $3.60 per pound to make 50 pounds of cancdy selling for $2.16 per pound. How many pounds of each kind of candy did he use in the mix? I cannot figure out the other equation. 2x+3.60y=50 Please explain
*October 8, 2014*

**Math**

When buying gasoline, you notice that 14 gallons of gasoline is approximately the same as 53 liters. Use this information to find a linear model that relates gallons to liters. Then use the model to find the number of liters in 25 gallons. Round your answer to the nearest tenth.
*October 2, 2014*

**Math Help **

Which pair(s) of functions are inverses? There may be more than one correct answer. a.) f(x) = x - 12, g(x) = x + 12 b.) f(x) = 3x, g(x) = 1/3x c.) f(x) = 4x, g(x) = -4x d.) f(x) = 2x + 1, g(x) = 2x - 1 My answer: B & C
*September 30, 2014*

**biology**

Which of the follow comparisons would be an inaccurate analogy between prokaryotic cells and eukaryotic cells? A - A eukaryotic cell is like a college campus was a prokaryotic cell is like a one-room schoolhouse B - A eukaryotic cell is like a flip phone while a prokaryotic ...
*September 28, 2014*

**Business**

The term that refers to doing any kind of business online is
*September 27, 2014*

**math**

Two surveyors with two-way radios leave the same point at 9:00 A.M., one walking due south at 3 mi/hr and the other due west at 4 mi/hr. How long can they communicate with one another if each radio has a maximum range of 7 miles?
*September 21, 2014*

**math**

A pizza box with a square base is to be made from a rectangular sheet of cardboard by cutting six 1-inch squares from the corners and the middle sections and folding up the sides (see the figure). If the area of the base is to be 400 in^2, what size piece of cardboard should ...
*September 19, 2014*

**science**

Name a molecule that transmits energy. Answer: Energy Molecule
*September 19, 2014*

**science**

Name a molecule that transmits energy. Answer: Energy Molecule
*September 18, 2014*

**algebra**

2x^=5-2x find the real solution using the quadratic formula
*September 5, 2014*

**Geometry**

The area of a rectangle is 25. The lenght is 1/2 of the width. Please help me solve for length and width.
*August 24, 2014*

**accounting**

Describe how the separation of (1) authorization of production transactions, (2) recording of these transactions, and (3) physical custody of inventories can be specified among the production, inventory, and cost accounting departments. How does the production order document ...
*July 11, 2014*

**accounting**

Describe how the separation of (1) authorization of production transactions, (2) recording of these transactions, and (3) physical custody of inventories can be specified among the production, inventory, and cost accounting departments. How does the production order document ...
*July 11, 2014*

**Physics**

A car is traveling at 11.0 m/s, and the driver sees a traffic light turn red. After .59 s (the reaction time), the driver applies the brakes, and the car decelerates at 8 m/s^2. What is the stopping distance of the car, as measured from the point where the driver first sees ...
*June 27, 2014*

**Economics**

increasing production
*June 16, 2014*

**intro to computer **

Search: Your boss is very skeptical about the idea of storing his files up in the cloud rather than on a local storage drive. He asks you to give him the various advantages of cloud storage. Which of the selections below would not be a reason you give him? A. He won’t ...
*June 12, 2014*

**maths**

453cm2
*June 10, 2014*

**Intro to computer **

you want ghost your network's computers with a fresh desktop that features Windows 8, as your computer currently using windows 7. You will use Norton Ghost to do this. What source will Norton Ghost utilize to install Windows A. The ISO installation file downloaded from the...
*June 2, 2014*

**Physics**

Just to clarify, when you conclude that the block m doesn't slip, which forces are you comparing? If the friction was smaller than the force required to accelerate the small block, would it then slip?
*May 27, 2014*

**Physics**

Thank you so much!
*May 27, 2014*

**Physics**

A block with mass M = 5.00 kg rests on a frictionless table and is attached by a horizontal spring (k = 130 N/m) to a wall. A second block, of mass m = 1.25 kg rests on top of M. The blocks are displaced by 10 cm then released. If the coefficient of static friction between the...
*May 27, 2014*

**main idea**

The main conclusion you can draw from this paragraph is that A. because of the greenhouse effect, plants on Earth should thrive. B. a greenhouse helps plants to grow faster. C. the atmosphere keeps Earth warm D. in a greenhouse, the Sun's heat is trapped by the glass
*May 18, 2014*

**science**

My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be used by plants to ...
*May 7, 2014*

**socail studies**

During the War of 1812 The Americans won a victory at a)Detroit b) The Thames c) Quebec Answer: B The English were able to land an army and capture the city of a) Washington b) Baltimore c) New York Answer: A "The Star Spangled Banner" was written during the ...
*May 7, 2014*

**social studies**

I am only trying to answer questions given to me by my school, so they are the ones who need to be corrected. On the other hand, are my answers correct?
*May 6, 2014*

**social studies**

The British attempted two invasions of America from the sea. The first one was at ? (Baltimore) and the second one at ?(New York) 2. After capturing Washington, the British attacked what city, which they failed to capture? Answer: New York, Statton Island 3. On November 7, ...
*May 6, 2014*

**statistics**

A researcher is interested in whether herbal remedies are effective in relieving allergies, and if so, which ones are most effective. The researcher takes a group of 20 allergy sufferers and randomly assigns each one to receive herbal tea, a homeopathic administration of ...
*May 4, 2014*

**statistics**

It is known that the population mean for the Quantitative section of the GRE is 500, with a standard deviation of 100. In 2006, a sample of 400 students taking the GRE, whose family income was between $70,000 and $80,000, had a quantitative GRE score of 511. Perform a one-...
*May 4, 2014*

**math**

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -9x2 + 2x + 4.
*April 27, 2014*

**Economics **

If Alisha Maintenance manufacturing has: total maintenance cost of $2,785,000 total fixed maintenance cost of $310,000 total variable maintenance cost of $2,475,000 total maintenance cost per unit is $18.57 fixed maintenance cost per unite of $2.07 variable maintenance cost ...
*April 15, 2014*

**accounting**

If Alisha Maintenance manufacturing has: total maintenance cost of $2,785,000 total fixed maintenance cost of $310,000 total variable maintenance cost of $2,475,000 total maintenance cost per unit is $18.57 fixed maintenance cost per unite of $2.07 variable maintenance cost ...
*April 15, 2014*

**English**

Thank you. That's all I needed. I was not asking for my writing to be done, I was just stuck on this one.
*April 9, 2014*

**English**

Yes but the one that I am stuck on is the labor.
*April 9, 2014*

**English**

I have 811 words done already and just needed to know how to write about a restaurant. I know how to do this about a department store, but I am stuck on a restaurant.
*April 9, 2014*

**English**

Well thank you very much for assuming that I wanted you to write it for me!!! I re posted it under English instead of Business because I though there were different people for each subject and this is more of a writing assignment. Obviously I know the outline of what I need ...
*April 9, 2014*

**English**

Do you know what the 5 OMM costs of a restaurant would be. I know what the 5 OMM costs are (raw materials and components costs, plant costs, labor costs, inventory costs, and distribution costs) but I need to know what they would be for a restaurant.
*April 9, 2014*

**Other**

Do you know what the 5 OMM costs of a restaurant would be. I know what the 5 OMM costs are (raw materials and components costs, plant costs, labor costs, inventory costs, and distribution costs) but I need to know what they would be for a restaurant.
*April 9, 2014*

**5th grade math**

On each bounce a ball reaches 4/5 of the height of its previous bounce.How high will the ball bounce on its 3rd bounce? Also, how many bounces will it take the ball to bounce to a height that is less than 1/2 of the height of the first bounce?
*April 7, 2014*

**English**

Determine the narrator's perspective Harold Davis took a deep breath and slowly started to peel the gauze from the wound on his grandmother's leg. "Hold on Grandma. I'm almost done," he said quietly. "Don't worry, baby. It doesn't hurt too ...
*April 4, 2014*

**Math**

5. There was a drawing for a prize at the Columbus Day celebration downtown. The prize was a scale model of the Santa Maria carved from a single piece of wood by a local artist. It was a beautiful ship and Jose really wanted it. Each $2.25 ticket bought one chance in the ...
*April 1, 2014*