Friday

December 9, 2016
Total # Posts: 849

**maths**

321 divide by 13 By rounding this numbers

*February 11, 2013*

**Science!**

How many grams of NH3 gas can be made if 42.0 g of N2 gas and 12.0 g of H2 gas react with each other? N2 + 3 H2 ↔ 2 NH3

*February 11, 2013*

**math**

Jerome is 1.5 meters tall, and at a certain time of day, he casts a shadow that is 2 meters. His friend measures the shadow formed by a nearby flagpole at the same time of day and finds it to be 24 meters. What is the height of the flagpole?

*February 8, 2013*

**Applied Calculus......**

Rewrite the expression using positive exponents only. (Simplify your answer completely.) (x^3-y^3)(x^-3+y^-3)

*February 8, 2013*

**Applied Calculus......**

Under a set of controlled laboratory conditions, the size of the population of a certain bacteria culture at time t (in minutes) is described by the following function. P=f(t)=3t^2+2t+1 Find the rate of population growth at t = 9 min.

*February 7, 2013*

**Applied Calculus......**

Find the slope m of the tangent line to the graph of the function at the given point and determine an equation of the tangent line. f(x)=6x-5x^2 at (-2, -32) I have to use the four step process, but seem to be getting stuck...

*February 7, 2013*

**Math**

A copy machine makes 60 copies per minute. A second copy machine makes 80 copies per minute. The second machine starts making copies 2 minutes after the first machine starts. Both machines stop making copies 8 minutes after the first machine started. Together, the 2 machines ...

*February 6, 2013*

**Accounting**

The business was started on April 1st. I have the following events that happened: what accounts should I debit and credit? 1. Incurred advertising expense of $1,907 on account. 2. Hired park manager at a salary of $3,783 per month, effective May 1. 3. Sold 140 coupon books for...

*February 6, 2013*

**Accounting**

The business was started on April 1st. I have the following events that happened: what accounts should I debit and credit? 1. Incurred advertising expense of $1,907 on account. 2. Hired park manager at a salary of $3,783 per month, effective May 1. 3. Sold 140 coupon books for...

*February 5, 2013*

**Physics**

The drawing shows six point charges arranged in a rectangle. The value of q is 8.07 μC, and the distance d is 0.430 m. Find the total electric potential at location P, which is at the center of the rectangle.

*February 5, 2013*

**Physics**

The drawing shows six point charges arranged in a rectangle. The value of q is 8.07 μC, and the distance d is 0.430 m. Find the total electric potential at location P, which is at the center of the rectangle.

*February 5, 2013*

**Physics**

The drawing shows six point charges arranged in a rectangle. The value of q is 8.07 μC, and the distance d is 0.430 m. Find the total electric potential at location P, which is at the center of the rectangle.

*February 5, 2013*

**Applied Calculus......**

Use the method of bisection to find the root of the equation x^5 + 3x − 7 = 0 accurate to two decimal places.

*February 4, 2013*

**Applied Calculus......**

Suppose a snowy-tree cricket chirps 180 times per minute if the temperature is 102 degrees, and chirps 120 times per minute when the temperature is 90 degrees. Construct a mathematical model that will predict the number of chirps per minute at a temperature in degrees ...

*February 3, 2013*

**english**

i need to write a historical narrative for school. it has to have dialogue and be in any persons viewpoint from the great depression and world war 2. it has to revolve around a specific climax or such. so i need some help coming up what to write about! thanks much.

*February 3, 2013*

**chem**

10.1

*February 1, 2013*

**Applied Calculus......**

A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1/2 in. margins on the sides. She further stipulated that each page should have an area of 60 in.2. Find a function in the variable x, giving the area of the printed region.

*January 29, 2013*

**Percent word problem**

A pitcher holds 2 gallons of orange juice. The orange juice is made 20% concentrated juice and 80% water. How much water is used in the orange juice?

*January 18, 2013*

**Physics**

The patient in the figure below is to receive an intravenous injection of medication. In order to work properly, the pressure of fluid containing the medication must be 108 kPa at the injection point. (a) If the fluid has a density of 1024 kg/m3, find the height at which the ...

*January 15, 2013*

**Physics**

What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2? A. 0.25 N B. 49 N C. 196 N D. 748 N

*January 15, 2013*

**floral disign**

what is the most effective way for you to locate growers to supply your design needs

*January 10, 2013*

**math**

I 1, 2, 4, 8, OR 10

*January 9, 2013*

**Math**

I have to factor 15x^2+2x-24 How can I do this?

*January 3, 2013*

**Chemistry**

The half-life of hafnium-156 is 0.025 s. how long will it take a 560 g sample to decay to one-fourth it's original mass?

*December 11, 2012*

**Chemistry**

If the half life of Iodine-131 is 8.10 days, how long will it take for 120.0 g to decay to 7.50g?

*December 11, 2012*

**Chemistry **

Thallium-208 has a half life of 3.053 min. How long will it take for 120.0 g to decay to 7.50 g?

*December 11, 2012*

**Chemistry **

If 100.0 g of carbon-14 decays until only 25.0 g of carbon is left after 11,460 y, what is the half-life of carbon-14?

*December 11, 2012*

**History**

How did the Civil War affect the home front in the north and south?

*December 10, 2012*

**History (Industrial Revolution)**

Can you give me an outline of the Industrial Revolution?

*December 8, 2012*

**Calculus**

When an electronics store prices a certain brand of stereos at p hundred dollars per set, it is found that q sets will be sold each month, where q2 + 2 p2 = 41. a. Find the elasticity of demand for the stereos using implicit differentiation. b. For a unit price of p = 4 ($400...

*December 4, 2012*

**Calculus**

When an electronics store prices a certain brand of stereos at p hundred dollars per set, it is found that q sets will be sold each month, where q2 + 2 p2 = 41. a. Find the elasticity of demand for the stereos using implicit differentiation. b. For a unit price of p = 4 ($400...

*December 3, 2012*

**new mexico**

Kara drew a horizontal dashed line through the middle of a trapezoid parallel to the parallel sides.Did she create a line of symmetry?

*November 29, 2012*

**5th grade math**

i need help

*November 27, 2012*

**math**

2100

*November 27, 2012*

**math**

working on adding unlike fractions

*November 27, 2012*

**Physics**

Joe wishes to hang a sign weighing 730 N so that cable A, attached to the store, makes a 30.0° angle, as shown below. Cable B is horizontal and attached to an adjoining building. What is the tension in cable B?

*November 17, 2012*

**PLEASE HELP - DIVISORS PROB**

3/5

*November 15, 2012*

**Physics**

A shell is fired from the ground with an initial speed of 1.72 103 m/s at an initial angle of 40° to the horizontal. a) Neglecting air resistance find the horizontal range b) Find the amount of time the shell is in motion

*November 14, 2012*

**5th grade language**

In the following poem I need to know examples of assonance in lines 1-4 1. There once was a cowboy named Ray 2. Who never had that much to say 3. Except for the times 4. Stampedes stopped on a dime 5. When that cowboy named Ray hollered "hey"

*November 7, 2012*

**algebra 2**

factor the expression 2x^2+5x+3 I just don't understand and my teacher is not a good one

*November 6, 2012*

**Steve Math**

WHAT THE HECK IS THIS

*October 30, 2012*

**Math**

4/5 -7/5

*October 16, 2012*

**physics**

A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12 m long and it takes the block 25 seconds to reach the bottom. What is the coefficient of kinetic friction, between the block and the incline?

*October 16, 2012*

**algebra**

I think it woul be 1400 tickets because you are only making 1 dollar per ticket and you are shelling out 2500 to workers and players subtract 1100 you have 1400 dollars you have to add.

*October 16, 2012*

**physics**

Sally applies a total force of 71 N with a rope to drag a wooden crate of mass 100 kg across a floor with a constant acceleration in the x- direction of a = 0.1 m/s2. The rope tied to the crate is pulled at an angle of = 50 relative to the floor. Calculate the ...

*October 13, 2012*

**algebra**

explain how to get answer and what is answer 14 times x to the power of 16 divided by 6 times x to the power of 11

*October 10, 2012*

**Language Art**

You can explore, with a minimal time commitment, an interest, hone a skill, or participate in an activity. If you rewrote sentence 3 beginning with With a minimal time commitment, the next words should be 1. to be exploring 2. you can explore 3. an interesting exploration 4. ...

*October 6, 2012*

**Algebra Word Plob..PLEASE HELP**

You have to wrap gift boxes for your club project. Each box is 4.5 inches wide, 7 inch long, and 4 inches tall. What size sheet of wrapping paper do you need to cut to cover the box? Gift wrap paper comes in sheets which are 30 inches wide and 36 inches long. How should you ...

*October 4, 2012*

**Earth Science**

Renewable resources can be replaced as fast as they are consumed? It is true or false?

*October 4, 2012*

**Earth Science**

How energy flows through the Earth's system.

*September 30, 2012*

**eath science**

is moon a source of earth's energy?

*September 30, 2012*

**woodlake hills/ science**

The car jose is examing has a mass of 25 grams. What is the destiny of the car?

*September 27, 2012*

**woodlake hills/ science**

Jose put 40 mL of water into a graduated cylinder. After addinga toy car, the water level in the cylinder rose to 65mL. What isthe volume of the toy?

*September 27, 2012*

**Physics**

A bear spies some honey and takes off from rest, accelerating at a rate of 2.3 m/s2.v If the honey is 18 m away, how fast will his snout be going when it reaches the treat?

*September 20, 2012*

**Physics II**

A teacher of 75.0 kg bungee-jumps (steps from rest) from a 100 m tower towards a river. The cord can stretch 40.0% of its unstrecthed length and has a breaking strength of 5000. N (if tension is greater than this, it snaps). The cord stretches .250 meters when a 10.0 kg weight...

*September 17, 2012*

**English**

Is this the thesis: "Let every nation know, whether it wishes us well or ill, that we shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe to assure the survival and the success of liberty." ?

*September 10, 2012*

**English**

I have to analyze John F. Kennedy's inaugural address. I need to find the thesis, preview statement (forecasting or signposting), because statement (why the audience might be interested in listening), transitions, a restatement of thesis, and a clincher. Here is the text ...

*September 10, 2012*

**programming**

Draw a flowchart or write the pseudocode for an application that allows a user to enter price and computes 8 percent sales tax on the item. Use // declartions

*September 5, 2012*

**IT**

Draw a flowchart or write the pseudocode for an application that allows a user to enter price and computes 8 percent sales tax on the item. Use // declartions

*September 5, 2012*

**IT**

9. Draw the flowchart or write the pseudocode for an application that allows a user to enter an automobile loan balance. Assume that the user pays 1/36 of the balance each month, and display the new balance after one month and after two months

*September 5, 2012*

**Chemistry**

11.7

*September 5, 2012*

**Physics**

A man is 6 feet tall and wishes to have a "full length mirror" in his house, meaning a mirror that lets him see himself from top to bottom. He goes to the hardware store to get a piece of flat (plane) mirror that is just barely long enough to work. How long is the ...

*September 3, 2012*

**7th grade math**

1/1 2/8 3/27/4/64 :/: n/?

*September 3, 2012*

**MATH**

solve for the equation or formula for the specified variable x+y-a=b,for y over Z

*August 29, 2012*

**Please check my U.S. Government answers!**

Seven was correct. Political culture is defined as a commonly shared set of beliefs and values about politics and government. The culture affects how people believe that politics should be carried out. Most countries have a unique political culture affected by their history ...

*August 28, 2012*

**Physics**

In the double slit experiment with light, we know that the spacing of the interference fringes (which is what we call the bright spots on the screen) depends on the wavelength of the light. How? Specifically, if you make the wavelength of the light bigger, how does the spacing...

*August 22, 2012*

**Chemistry (balance)**

Thank you, it worked... I was diving the wrong way

*August 20, 2012*

**Chemistry (balance)**

if the heat of combustion for a specific compound is -1320.0 KJ/mol and its molar mass is 67.53 g/mol how many grams of this compound must you burn to release 791.60 kj of heat

*August 20, 2012*

**Chemistry**

On a warm summer day in Athens, the temperature is 33C (dry bulb temperature) and the relative humidity is 60%. What is the absolute humidity? (kg/kg Dry air) What is the humid volume of the air? (m^3 / kg Dry Air) What is the specific enthalpy of the air, taking H2O (L, 0C, ...

*August 15, 2012*

**Chemistry**

38.0kg mass of copper is melted to be cast into a graphite mold at a copper pipe foundtry. If the solid copper starts off at the normal melting temperature of copper and the liquid copper is put into the mold at the crystallization point of copper, how much heat is added to ...

*August 15, 2012*

**health**

ASheworth FTW

*August 11, 2012*

**health**

I believe B is correct :)

*August 11, 2012*

**Mathmatics**

A pile of sand that is stockpiled for winter road treatment is in the shape of a perfect cone. The beginning diameter is 110ft and the height at the center is 24ft. Assume wet sand weighs 3400 lbm/yd3. a) How many cubic yards of sand are in the pile? b) What is the mass o the ...

*July 9, 2012*

**English**

I need a real life example on how growing up or maturing involves seeing and experiencing pain. We used examples from this book we were reading but I also need a real life example and I can't think of one

*June 4, 2012*

**Math**

Thanks. There was ( ) on the 8 and the rest because your answer is not one of the answers

*May 31, 2012*

**Math**

No I do not want the Name I want to know how to figure it out once the numbers are all lined up and it is very confusing when signs need to be switched. Can you please explain that?

*May 31, 2012*

**Math**

Thanks-got it cubic trinomial. Here's another one when I have to change signs of negatives and positives for addition and subtraction. How do I do for example 5w^2-4w-7-8w^2+3w-3?

*May 31, 2012*

**Math**

Q1. How do I know what a expression is called for example 6x^3-9x+3?

*May 31, 2012*

**Physics**

A horse draws a sled horizontally across a snow-covered field. The coefficient of friction between the sled and the snow is 0.195, and the mass of the sled, including the load, is 202.4 kg. If the horse moves the sled at a constant speed of 1.857 m/s, what is the power needed ...

*May 27, 2012*

**Central high school**

D(t)=360

*May 24, 2012*

**Math**

Enter parentheses to make the following expression have a Value of 45: 24/8*3+5*2+18/3 *= times/multiple /= divided by

*May 23, 2012*

**Math**

Enter parentheses to make the following expression have a Value of 45: 24/8*3+5*2+18/3 *= times/multiple /= divided by

*May 23, 2012*

**National Junior Honor Society Essay Check**

Don't Junior Honor Society Essays need to be in paragraphs?

*May 15, 2012*

**English**

I don't think it's fair of Erin or potato to judge Liz for seeking help. She made it obvious she was just looking for a direction to go and not looking to copy answers. She stated what she knew and was looking for direction on how to form her thoughts better. I know ...

*May 13, 2012*

**math**

compare rectangular pyramids and rectangular prisms.How are they alike?

*May 7, 2012*

**physics help please**

Q : As you ride on a loop to loop in a roller coaster, select all the forces that might be acting on you at the top of the loop a: force down due to gravity b: force down from the seat on you c: force up on you from the straps holding you in place d: centripetal force on you ...

*May 4, 2012*

**PHYSICS PLEASE HELP !**

Q : As you ride on a loop to loop in a roller coaster, select all the forces that might be acting on you at the top of the loop a: force down due to gravity b: force down from the seat on you c: force up on you from the straps holding you in place d: centripetal force on you ...

*May 4, 2012*

**physics- MC QUESTIONS**

thank you :]

*May 3, 2012*

**math**

what is a shape called with 1 small top,1 big bottom,and when the sides go up it gets smaller and when it goes down it gets bigger.

*May 1, 2012*

**physics**

Q: AN OBJECT IS MOVING PAST YOU IN A STRAIGHT LINE WITH A CONSTANT SPEED. YOU CAN CONCUDED A. THAT THERE IS A CONSTANT FORCE IN THE DIRECTION OF MOTION B. THAT THERE ARE NO FORCES ACTING ON THE OBJECT C. THAT THE NET FORCE ON THE OBJECT IS ZERO D. NONE OF THE ABOVE Q#2 IF YOU...

*April 23, 2012*

**PHYSICS**

Q: AN OBJECT IS MOVING PAST YOU IN A STRAIGHT LINE WITH A CONSTANT SPEED. YOU CAN CONCUDED A. THAT THERE IS A CONSTANT FORCE IN THE DIRECTION OF MOTION B. THAT THERE ARE NO FORCES ACTING ON THE OBJECT C. THAT THE NET FORCE ON THE OBJECT IS ZERO D. NONE OF THE ABOVE Q#2 IF YOU ...

*April 22, 2012*

**math**

A snail crawled for 40 seconds at an average speed of 15 millimeters per second.Explain how to find the distance the snail traveled in centimeters

*April 17, 2012*

**calculus**

A magician writes a list of numbers, 1 through 10, on the board then turns his back to the board. Two audience members are asked to write different numbers from 1-10 in the first two spaces. One of the spectators adds the two numbers and places the result in position 3. Then ...

*April 7, 2012*

**Computer Science**

I got part one but part 2 is confusing. Part1: Create a class called Person that has two subclasses Student and Employee. Make Faculty and Staff subclasses of Employee. A person has name and address. A student has GPA as a real number between 0.00 and 4.00. An employee has an ...

*March 25, 2012*

**math**

a survey was taken at the park. Children were asked how many times they had visited the park this year. Find the range, mode, and median of the data to the right. trips to the Park ----------------------- number of number of visits visitors 3 ///// 4 /// 5 /////// 6 //////

*March 19, 2012*

**statistics**

writing to explain. the median score on a test is 90. is it possible to add two more scores to the data and still have a median score of 90? explain ypur answer

*March 19, 2012*

**math**

a survey was taken at the park. Children were asked how many times they had visited the park this year. find the range, mode, median of the data to the right. trips to the park. number of visits 3 4 5 6

*March 19, 2012*

**math**

a survey was taken at the park. Children were asked how many times they had visited the park this year. find the range, mode, median of the data to the right.

*March 19, 2012*