Monday
December 22, 2014

Posts by ANONYMOUS


Total # Posts: 75,772

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

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

Physics
A billiard ball moving at 5.45 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 4.81 m/s, at an angle of 28° with respect to the original line of motion. Find the velocity (MAGNITUDE and DIRECTION) of the second ball after...
November 8, 2014

economics
6)Assume the graph below represents the market demand for a patented prescription drug together with the firm-level marginal cost and average cost functions for producing the drug. Assume these cost curves do not reflect R&D costs of developing this drug, but only reflect ...
November 8, 2014

math
the bearing of P from Q is 60. what is the bearing of Q from P?
November 8, 2014

chemistry
8.00g of NaOH are dissolved in water to make 4.00L of solution. What is the concentration of hydronium ions, [H3O+], in this solution? Express your answer with the appropriate units.
November 7, 2014

physics
Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of the velocity) is the ...
November 7, 2014

physics
a school bus traveling along a straight road from school was found to be 2.0km North of the school 4minutes later. In another 4minutes it was 4km West of the school. Draw the position of the bus from school.
November 7, 2014

physics
Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of the velocity) is the ...
November 7, 2014

physics
Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of the velocity) is the ...
November 7, 2014

physics
Two cars leave the same point at the same time, each travelling at the same constant speed of 89.0 km/h and each having the same mass. However, the first car drives directly east, while the second car heads directly south. At what speed (the magnitude of the velocity) is the ...
November 7, 2014

physics
how do you solve this???
November 7, 2014

Pre-Calc/Trig
Use Descartes' rule of signs to describe the roots of the polynomial function. m(x)=x^3+3x^2-18x-40
November 7, 2014

physics
Find the displacement of the car after 5.9 s. Answer in units of m
November 7, 2014

Preschool Creative Thinking
The eclectic theoretical approach that most teachers use means that: a. the major development theories are used on different days of the week on a rotating basis. b. one major developmental theory is used for toddlers, another for preschool, another for kindergarten, and the ...
November 7, 2014

Preschool Creative Thinking and Arts Based Learnin
Supporting "possibility thinking" means teachers are encouraging children to: a. first solve problems and follow directions, then "think outside the box." b. not merely solve problems but find them, then pose "what if" questions in their minds. c...
November 7, 2014

Pre-Calc/Trig
Help me please. List all possible rational zeros for the polynomial function. p(x)=3x^3-2x^2-5x-2
November 7, 2014

anger management
IM TAKING A ANGER MANAGEMENT CLASS AND I DONT UNDERSTAND THE QUESTION
November 7, 2014

anger management
did you ever confuse anger with aggression? please explain how.
November 7, 2014

physics
Static friction is smaller than kinetic friction because it is harder to keep an object than moving than to put it in motion.
November 7, 2014

statistics
what is the weight between 5.5 to 6 ounce when mean is 5,75 ounce and standard deviation is 0.11
November 7, 2014

sentence structure
What is the subject and predicate of this sentence? "There are children waiting." Is it "children are waiting" or "there are"?
November 7, 2014

math
How do you find the answer to 35.5×18.76
November 7, 2014

Physics
block slides across table with initial speed of 8 m/s coefficient of friction between block and table is .5 and table is 4 m long and 1.2 m high determine how far the block lands from the base of the table
November 7, 2014

Physics
block of mass 3.5 kg slides down frictionless incline that is 10 m long and inclined at angle of 37 when reaches bottom of incline it collides perfectly inelastically with another block of mass 2 kg then slides along a level floor if coefficient of friction between the block ...
November 7, 2014

physics
find displacement 4 vectors (1) 40 meters @10, (2) 30 meters @ 190 and (1)50 meters @ 280
November 6, 2014

physics
How high must your roof be to fire 1.2km if it fires at 450 m/s muzzle velocity?
November 6, 2014

physics
A cannon rests on the ground at 40 degree angle it fires a ball at 200 m/s how high is the top of trajectory? At what impact speed does it rest? How far away does it land?
November 6, 2014

t
A 15.7-L tank is filled with H2 to a pressure of 237 atm. How many balloons (each 2.00 L) can be inflated to a pressure of 1.00 atm from the tank? Assume that there is no temperature change and that the tank cannot be emptied below 1.00 atm pressure.
November 6, 2014

physics
A cannon 25m off the ground It fires horizontally at 320m/s muzzle velocity How close can it be to begin firing?
November 6, 2014

math
0.082 rounded to ?
November 6, 2014

Science HELP
I thinks it D. Because you can't convert chemical change, which mean product and reactant are completely different.
November 6, 2014

Algebra
symbolize and solve equations using: average prices of three items A, B, C is $ 16000, if the price of the item a is twice the sum of the prices of the items B and C
November 6, 2014

Algebra
symbolize and solve equations using: average prices of three items A, B, C is $ 16000, if the price of the item a is twice the sum of the prices of the items B and
November 6, 2014

Calculus
d/dx[(3x^2+2•sqrt of x)/x]=? Is it 3-(1/(x•sqrt of x))?
November 6, 2014

pre-algebra
a 50-pound bag of grass seed sells for 292.50. find the unit price of grass seed
November 6, 2014

Algebra
A grocer buys cases of almonds and walnuts. Almonds are packaged 20 bags per case. The grocer pays $30 per case of almonds and makes a profit of $17 per case. Walnuts are packaged 24 bags per case. The grocer pays $26 per case of walnuts and makes a profit of $15 per case. He ...
November 6, 2014

physics
A 15 kg rock is horizontally from very high cliff at a speed of 65m/s. what is the speed of the rock after it has fallen a vertical distance of 35m?
November 6, 2014

Calculus
oh thank you. this formate shows a lot better. Thank you Steve.
November 6, 2014

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