Friday
November 21, 2014

Posts by anonymous


Total # Posts: 74,437

Pre-Calc/Trig
I appreciate your help. Thank you.
November 11, 2014

Pre-Calc/Trig
Describe the end behavior for function by writing a limit expression. f(x)=2x^5-x+7
November 11, 2014

math
$28.8
November 11, 2014

algebra
lol
November 11, 2014

Physical Science
The sun's energy melts part of a glacier of ice at 0 degrees Celsius. The sun supplies 880 kilocalories to a big glacier of ice at 0 degrees Celsius. How many kilograms of ice will melt into liquid water at 0 degrees Celsius?
November 11, 2014

Physics
500/9.81 50.968(5.0)(10) 250N
November 11, 2014

Physics
Matthew is spelunking when he loses his rope. John lowers a rope down to him, a distance of 40m. If Matthew has a mass of 50kg, and the rope can withstand a maximum force of 547N without breaking, what is the minimum amount of time it will take to pull Matthew out of the cave??
November 11, 2014

physics
Mia is on a planet where g=10 m/s^2. she is standing on a bathroom scale in an elevator. the scale reads 500N. the elevator accelerates upward with an acceleration of 5.0m/s^2 what would the scale read now
November 11, 2014

French
Is this a right way to say, "I'm in ninth grade"? Je suis en neuvième année.
November 10, 2014

algebra
f(x)=4.75x, gives its domain and range
November 10, 2014

French
Please check this sentence. Elle adore voyager en avion.
November 10, 2014

French
Could you please check this sentence? J'habite à Paris avec ma grand-mère, mère et mon grand-père.
November 10, 2014

world problem
2/3
November 10, 2014

History
The Universal Declaration of Human Rights uses much more ambiguous but universally acceptable terminology, because it is speaking for the rights of millions of people worldwide of many races and ethnic and religious backgrounds. This cannot be attained without using words and ...
November 10, 2014

science
the two liters. becuase theres more energy to be absorbed.
November 10, 2014

Calculus
The chain rule is a rule for differentiating compositions of functions.Use the Chain Rule to differentiate
November 10, 2014

trig
Find all angles è between 0° and 180° satisfying the given equation. cos è = 1/9
November 10, 2014

science
An apple falls from a tree and hits the ground 10.4 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2
November 10, 2014

Math
how much space do sleeping quarters take if the sleeping quarters are for 100 guests and average density of the sleeping quarters are 15kg/m2
November 10, 2014

Algebra 2
Thank you so much DonHo!
November 10, 2014

Algebra 2
Solve 5x^2 − 34x = 0 by factoring. What is the smaller answer?
November 10, 2014

writing
a) fifty-fifty b) tom-tom
November 10, 2014

writing
Murmur is an interesting word because both syllables are spelled the same : mur-mur. While this is an unusual, there are other words with this pattern. See how many of the words below you can guess. a) to split evenly b) a drum you beat with your hands
November 10, 2014

Math Pre Calc Help
(cos^4x -sin ^4 x)/(sin^2x)=cot^2x -1 How to prove true?
November 10, 2014

Pre calc
(cos^4x -sin ^4 x)/(sin^2x)=cot^2x -1 Prove true
November 10, 2014

physics
A hungry bear weighing 720 N walks out on a beam in an attempt to retrieve a basket of goodies hanging at the end of the beam (see the figure below). The beam is uniform, weighs 200 N, and is 7.00 m long, and it is supported by a wire at an angle of θ = 60.0°. The ...
November 10, 2014

Math
(cos^4x -sin ^4 x)/(sin^2x)=cot^2x -1
November 10, 2014

Early Childhood/Homem school and comm.
Changed my answer to (d) makes more sense that you would try to understand each point of view
November 10, 2014

Early Childhood/Homem school and comm.
Changed my answer to (d0 makes more sense that you would try to understand each point of view
November 10, 2014

Early Childhood/Homem school and comm.
Which part of RERUN describes when you try to see both point of view? a. Reflect b. Explain c. Reason d. Understand I chose a
November 10, 2014

Early childhood/home school and community
Judging a child based on the way the child dresses is an example of: a. racism b. classism c. ageism d. gender bias I thought d
November 10, 2014

Early Childhood
Toys advertised on television play an important part in defining: a. gender b. differential treatment c. sex roles d. appearances I chose c
November 10, 2014

Early Childhood
At what age is it important to socialize a child to feel or not to feel? a. The first two months b. The first year of life c. The first two years of life d. the first four years I chose c
November 10, 2014

Pre-Calc/Trig
thanks for the help
November 10, 2014

Pre-Calc/Trig
Help please State the x and y-intercepts for each function. f(x)= -x^3+4x
November 10, 2014

Early Childhood/Art and Creative Development
early childhood/preschool/Kindergarten
November 10, 2014

Early Childhood/Art and Creative Development
Which of the following art activities might best be presented to children in a small group setting? a. Mobiles and stabiles b. Journals c. Art appreciation d. Fiction and nonfiction books about authors I chose (a) because mobiles require a lot of tying string and balancing ...
November 10, 2014

Early Childhood
Which is NOT an example of a student using a digital camera for documentation? a. Taking pictures of a growing tadpole b. Taking pictures of a tree as it changes during seasons. c. Taking pictures of peers as they grow throughout the year. d. Taking pictures of a subject at ...
November 10, 2014

English
I am given a task to write a description of a theme/amusement park. But I have no idea where to start. Please help?  Things I should include:  The 5 senses  Some dialogue  Personification  Similies/metaphors  Contrasts  Sibilance  Varied...
November 10, 2014

Early Childhood/Art and Creative Development
Which of the following would be an appropriate use of technology for an 18-month old child? a. watching a Baby Einstein Video b. Skyping with a traveling parent c. Listening to an audiobook. d. Playing Angry Birds (b) because I think Baby Einstein got bad reviews and ...
November 10, 2014

Science
Why does Potassium Nitrate crystallise when cooled and saturated?
November 10, 2014

math
6
November 10, 2014

ap calc
find the maximum value of f(x)= 3cos(x)-2sin(x) I know you have to take the derivative but after the derivative I don't know how to solve it. f'(x)=-3sin(x)-2cos(x)=0 I don't know what to do after this please help
November 9, 2014

AP CALC
the curve y=ax+ b/x has a relative minimum at the point (1,4). find the values of a and b. please help. I have no idea how to solve this.
November 9, 2014

Trigonometry
poop
November 9, 2014

Trigonometry
The wheelchair ramp is 4.4 m long. It rises 1.2 m. What is its angle of inclination to the nearest degree?
November 9, 2014

ap calc
find the maximum value of f(x)= 3cos(x)-2sin(x) I know you have to take the derivative but after the derivative I don't know how to solve it. f'(x)=-3sin(x)-2cos(x)=0 I don't know what to do after this please help.
November 9, 2014

ap calc
the curve y=ax+ b/x has a relative minimum at the point (1,4). find the values of a and b. please help. I have no idea how to solve this.
November 9, 2014

ap calc
let f(x)= bx^2+6x, if x< or equal to 2 ax^3, if x>2 find the values of a and b such that f(x)is differentiable at x=2 I need help with this question I know you have to set both functions equal to each other. but I don't know how to solve for a and b
November 9, 2014

Math
For the triangle BMW, where M is 90 degrees, the hypotenuse is 13 and the leg BM is 5, find cos W.
November 9, 2014

Physics
A 0.422-kg ball with a speed of 1.31 m/s rolls across a level surface toward an open 0.348-kg box that is resting on its side. The ball enters the box, and the box (with the ball inside it) then slides across the surface a distance of 0.473 m. What is the coefficient of ...
November 9, 2014

Physics
A 18 g bullet is fired into the bob of a ballistic pendulum of mass 1.4 kg. When the bob is at its maximum height, the strings make an angle of 60° with the vertical. The length of the pendulum is 2.3 m. Find the speed of the bullet.
November 9, 2014

Physics
A 0.9-kg block (mass m) and a second block (mass M) are both initially at rest on a frictionless inclined plane. Mass M rests against a spring that has a force constant of 12.2 kN/m. The distance d along the plane between the two blocks is 3.64 m. The 0.9-kg block is released...
November 9, 2014

chemistry
How do you write a balanced equation for the preparation of phenylmagnesium bromide and it's reaction with benzophenone followed by neutralization in acid?
November 9, 2014

Physics
Traveling at a speed of 22m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of friction between the tires and the road is 0.68. How much time does it take for the car to come to a halt? As usual, ignore the effects of air ...
November 9, 2014

Early Childhood
Changed my answer to (c) because consequences are a result of your actions. Any one else have thoughts on this
November 9, 2014

biomechanics
Consider an experiment where a subject lands during two conditions from a height of 0.2 m. During the first landing condition, the subject lands 'stiffly' (e.g., very little knee flexion). During the second landing condition, the subject lands 'softly' (e.g., ...
November 9, 2014

English
B.may have a plural subject. C.will need commas to separate three or more verbs. D.all of the above I am think A have a singular subject
November 9, 2014

English
A sentence with a compound predicate A. may have a single subject
November 9, 2014

anthropology
A key concept for understanding male dominance in gender-stratified societies is the idea of
November 9, 2014

Chemistry
Is my answer correct? Calculate the mass of frost (water ice) on a piece of dry ice that would completely react with 2 mmol of phenylmagnesium bromide. (1/44 CO2)*(0.002mol of phenylmagnesium bromide)= 0.0000455
November 9, 2014

Pre-trig/Calc
Please help me. Use Descartes' rule of signs to describe the roots for each polynomial function. 3. m(x)=x^3+3x^2-18x-40
November 9, 2014

Math
Can someone please check to see if I answered these true and false statements correctly? Thank you! 1. A triangle can have two right angles. (TRUE??) 2. An equilateral triangle is also an acute. (TRUE??) 3. A right triangle can also be an isosceles. (TRUE??) 4. A scalene ...
November 9, 2014

government
Democrats lost governor’s races in blue states like Massachusetts and Maryland.
November 9, 2014

government
Explain the results of the elections in Maryland
November 9, 2014

government
Donna Edwards didn't win right??
November 9, 2014

government
what will be the impact of this election on federal versus state power (federalism)
November 9, 2014

government
What effect does the result of the republican party winning the election have on the Obama presidency?
November 9, 2014

chemistry
1. (3.0x10^4) divided by (6.2x10^1) = 5x10^2? 2. (4.7x10^-3) divided by (9x10^-4) = 5x10^-6 3. (3.0x10^4) times (6.2x10^1) =1.9x10^6 4. (4.7x10^-3) divided by (9x10^-4) =5x10^-6 5. (5.1x10^2) divided by (3x10^4)
November 9, 2014

geography
How does life in Istanbul differ from life in rural Turkey? A) Istanbul is more modern than rural Turkey B) Women in Istanbul do not work outside the home, whereas they do work outside the home C) Istanbul does not have a mixed economy and rural Turkey does D) Istanbul is ...
November 9, 2014

physics
An air-cooled motorcycle engine loses a significant amount of heat through thermal radiation according to the Stefan-Boltzmann equation. Assume that the ambient temperature is T0 = 24.5°C (297.65 K). Suppose the engine generates 11.5 hp (8.58 kW) of power and, due to ...
November 9, 2014

math
A trail mix recipe calls for 6 cups of peanuts. You have 4 small packages that each contain 2/3 cup of peanuts. How many more cups of peanuts do you need to get?
November 9, 2014

Chemistry
If 500 mol of hydrogen gas occupies 5.00L at 25 celsius, what is the pressure in atm? I believe this is Ideal gas law. I can't figure out how to put it in the PV=nRT.
November 9, 2014

Physics
horizontal frictionless air track... why are you using Pi?
November 8, 2014

history
2. Roosevelt addressed the struggles of industry with the National Industrial Recovery Act (NIRA). Which of the following was not one of the main components of this effort? African American labor assistance Public works projects National Recovery Administration Fair practice ...
November 8, 2014

Math
In trapezoid CDEF, angle D = angle E=90degrees. Angle C =60 degrees, EF=4.5cm, and DE=3.5cm. What is the perimeter of the trapezoid to the nearest mm?
November 8, 2014

Physics
A small sphere of mass 2 kg is attached to the end of a cord of length 2m and rotated in a vertical circle about a fixed point O. Determine the tension in the cord at the lowest point of the trajectory if the speed at this point is 7m/s. Use g=9.8 m/s2.
November 8, 2014

Physics
A small sphere of mass 1 kg is attached to the end of a cord of length 1 m and rotated in a vertical circle about a fixed point O. If the speed at the uppermost point of the trajectory is 1 m/s, the sphere will have a circular trajectory (will move in a circle). Use g=9.8 m/s2.
November 8, 2014

Physics
A small sphere of mass 3 kg is attached to the end of a cord of length 2m and rotated in a vertical circle about a fixed point O. Determine the tension in the cord at the uppermost point of the trajectory if the speed at this point is 8m/s. Use g=9.8 m/s2.
November 8, 2014

Physics
A 1550 -kg car moves on a horizontal curved road. If the radius of the curve is 46 m and the coefficient of friction between the tires and road is 0.1, find the maximum speed the car can have so that it may not skid.
November 8, 2014

Physics
A coin is placed on a large disk which rotates uniformly at a rate of 2 rot/s. The coefficient of friction between the coin and the disk is 0.1. To what distance from the center of the disk should the coin be placed so that the coin may not slip? I know that mu times g (.1 x 9...
November 8, 2014

Trigonometry
An airplane approaches an airport. At a certain time, it is 939 m high. Its angle of elevation measured from the airport is 19.5◦. To the nearest metre, how far is the plane from the airport?
November 8, 2014

Social Studies
*know
November 8, 2014

Social Studies
yes I need to no which site I can read more about it so I can get ideas for my paper
November 8, 2014

Social Studies
information to show how the U.S. Constitution distributes and limits powers within the federal government.
November 8, 2014

Math Question
In △PQR, ∠R=90◦ ,∠P=58◦, and PR=7.1 cm. Determine the area of △PQR to the nearest tenth of a square centimetre.
November 8, 2014

Spanish--1 question
Why is it not always necessary to include a subject pronoun before the verb in Spanish?
November 8, 2014

Spanish Help? Please.
Explain how an interlocking schedule at a Puerto Rican school works. Why are interlocking schedules used? Why is it not always necessary to include a subject pronoun before the verb in Spanish? What is the heritage of many of the students at Miami High School? Explain why so ...
November 8, 2014

Grammar
Think critically or critically think
November 8, 2014

chemistry
3. If 5.20 g of HCl is added to enough distilled water to form 3.00 L of solution, what is the molarity of the solution? [Use molecular weight: HCl, 36.46 amu] 5.20/36.46= 0.1426 X 3.00=0.428 M IS THIS CORRECT
November 8, 2014

chemistry
(4.7 x 10^-3 ) divided by (9 x 10^-4) = 5x10^-6
November 8, 2014

chemistry
so the first one is it 5x10^2?
November 8, 2014

chemistry
idk how you divide it
November 8, 2014

chemistry
so is this correct? 3rd is 1.86 * 10^6 4th is 1.53 * 10^7
November 8, 2014

chemistry
oh the question is to multiply and divide the significant figures ohh my mistake i thought i divided
November 8, 2014

chemistry
3rd is 1.86 * 10^6 4th is 1.53 * 10^7
November 8, 2014

chemistry
(3.0 x 10^4 ) ÷ (6.2 x 10^1) = 18.6x10^3 (4.7 x 10^-3 ) ÷ (9 x 10^-4) = 42.3x10^-7 (3.0 x 10^4 ) x (6.2 x 10^1) = 18.6x10^3 (5.1 x 10^2 ) x (3 x 10^4) = 15.3x10^-2
November 8, 2014

Algebra 2
Find x,y,z 2x-3y+z=-1 2x-y+2z=6 5x-4y+3z=6 Please show work I want to learn!!!
November 8, 2014

MicroEconomics
an accountant claims that she has found a legal way for Beth to shelter $3,000 of taxable income from the federal government. The maximum amount that Beth is willing to pay to learn this strategy and reduce her taxable income by $3,000 is
November 8, 2014

Economic
Beth is single and lives in New York. Beth earned $280,000 in 2011. The following table shows the IRS tax rates for a single taxpayer in 2011 On Taxable Income .. Tax Rates up to $8,500 10% From $8,500 to $34,500 15% From $34,500 to $83,600 25% From $83,600 to $174,400 28% ...
November 8, 2014

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

Search
Members