Wednesday

October 26, 2016
Total # Posts: 1,842

**math**

the 12 oz can but I came out with a remainder when I divided not sure what I am suppose to do if I show a remainder

*October 26, 2016*

**math**

12 ounces of corn costs .59 16 ounces of corn costs .81 which is the better by .59/12=.04 .81/16-.05

*October 26, 2016*

**physics**

A block with a mass of 0.306 kg is attached to a spring of spring constant 444 N/m. It is sitting at equilibrium. You then pull the block down 4.50 cm from equilibrium and let go. What is the amplitude of the oscillation?

*October 26, 2016*

**math**

if a 12 ounce can of beans cost .59 how much does one ounce cost .59/12=.04

*October 26, 2016*

**physics**

A horizontal circular platform (m = 122.1 kg, r = 3.43m) rotates about a frictionless vertical axle. A student (m = 82.3kg) walks slowly from the rim of the platform toward the center. The angular velocity, omega, of the system is 2.9 rad/s when the student is at the rim. Find...

*October 25, 2016*

**Math**

How would you describe your understanding of rational numbers? (Select all that apply)

*October 23, 2016*

**physics**

A block of mass 0.49kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it slides across a horizontal piece of track where the coefficient of kinetic friction is 0.28. This section (from points B to C) is 3.60m in length. ...

*October 19, 2016*

**Physics**

A ball is thrown straight up at 45 m/s. How long will it take the ball to come back to its original height? Why?

*October 13, 2016*

**Algebra **

Solve the system by elimination -2x + 2y + 3z = 0 -2x - y + z = -3 2x + 3y + 3z = 5

*October 12, 2016*

**Algebra **

Can someone please help me I'd really appreciate it Solve the system by substitution -x - y - z = -8 -4x + 4y + 5z = 7 2x + 2z =4

*October 12, 2016*

**physics**

A 65.2 kg person jumps from rest off a 3.11 m-high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.08 m under the surface of the water. Determine the magnitude of the average force that the water exerts on the diver. This ...

*October 6, 2016*

**physics**

On a frozen pond, a 13.9 kg sled is given a kick that imparts to it an initial speed of v0 = 1.81 m/s. The coefficient of kinetic friction between sled and ice is μk = 0.122. Use the work kinetic energy theorem to find the distance the sled moves before coming to rest.

*October 6, 2016*

**Algebra **

Solve the system by substitution: -4.5x-2y=-12.15 3.25x-y=-0.75

*October 6, 2016*

**Chemistry**

To prepare a solution of NaCl, you weigh out 2.634 (0.002)g and dissolve it in a volumetric flask whose volume is 100.00 (0.08) mL. Express the molarity of the solution, along with its uncertainty.

*October 2, 2016*

**Math**

In Cathy's garden 5/6 of the area is planted with flowers. Of the flowers, 3/10 of them are red. What fraction of Cathy's garden is planted with red flowers?

*September 27, 2016*

**Chemistry**

A 635 mL solution of HBr is titrated with 0.51 M KOH. If it takes 1569 mL of the base solution to reach the equivalence point, what is the pH when only 141 mL of the base has been added to the solution?

*September 27, 2016*

**physics**

Block A (Mass = 5.195 kg) and Block B (Mass = 3.330 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a frictionless, massless pulley...

*September 21, 2016*

**Science**

The density of steel metal is 7.81g/cm3.

*September 20, 2016*

**physics**

Two ropes are pulling upward on a large crate. The weight of the crate is 458 N. The tension in the left rope is the same as the tension in the right rope.If the crate is accelerating upward at a rate of 1.95 m/s2, and the tension in the two ropes is the same, what is the ...

*September 19, 2016*

**physics**

Determine the direction of frictional forces (left, right, up down) for the objects: 1) A cup resting on top of a car. The car is moving and accelerating to the right. 2) A block being pushed to the right up an incline. 3)A block being placed at the middle of an incline (slope...

*September 14, 2016*

**Math**

Create a story problem (scenario) that could be solved using the expression:1 1/2

*September 13, 2016*

**Alg**

A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.

*September 10, 2016*

**Alg**

Find a reasonable domain and range for each function- A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore

*September 10, 2016*

**Alg**

A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.

*September 10, 2016*

**Alg 1**

To earn a B in your Algebra class, you must achieve an unto under test average between 84 and 86 (inconclusive). You scored 86,85, and 80 on the first three tests of threading period. What possible scores can you earn on the fourth and final test to earn a B in the course?

*September 7, 2016*

**American Government**

Oh okay thank you

*September 4, 2016*

**American Government**

Or would it be A since the national and state share power

*September 4, 2016*

**American Government**

Would it be D?

*September 4, 2016*

**American Government **

why does federalism create tension between state and national governments? A.) Both national and state governments share power. B.) state and local governments have no support from national government C.) states are not able to work with each other D.) the national government ...

*September 4, 2016*

**American government **

How does the 10th amendment shown below demonstrate a constitutional provision for limiting government? The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people. A.) It ...

*September 1, 2016*

**American government**

1. Was c not D

*September 1, 2016*

**American government**

Thank you so much

*September 1, 2016*

**American government **

1.) Which of the following is true about the formal amendment process for the Constitution? A.) Any citizen may propose an amendment. B.) only Congress may propose an amendment. C.) both houses of Congress must pass a resolution to propose an amendment. D.) the president can ...

*September 1, 2016*

**college physics**

A student observes 30 waves traveling down a string in a lab experiment. It takes 10 seconds for the waves to all go by. What is the frequency of the waves (in Hz)?

*July 25, 2016*

**College physics**

Please help me... I have no idea where to begin...A tone of 4000 Hz is being played on a tuning fork. You run toward the tuning fork at 5 m/s. What frequency do you hear? Take the speed of sound to be 343 m/s.

*July 25, 2016*

**Economics - PLEASE HELP**

We don't have a text. It's an online class and we never learned any of this. Thanks, though.

*July 13, 2016*

**Economics - PLEASE HELP**

So.. Here's my second try: 1. C 2. A 3. B 4. A 5. B Are these right?

*July 13, 2016*

**Economics - PLEASE HELP**

Homework Help: Economics PLEASE CHECK MY ANSWERS! 1. The MAIN advantage to a corporation is.. A. Ease of entry B. Limited liability for the owners C. Dividends all go to one person D. Owners share managerial duty E. All of the above (My answer: E) 2. The MAIN advantage to a ...

*July 13, 2016*

**physics**

A conductor of length 2m carries a current of magnetic field of magnetic flux density 0.5T. The maximum force acting on it is ?

*July 12, 2016*

**math**

volume of equilateral triangle with and area of 6 sq inches and height of 15 inches

*July 11, 2016*

**Math**

Find the future value of an ordinary annuity of $70 paid quarterly for 5 years, if the interest rate is 10%, compounded quarterly. (Round your answer to the nearest cent.)

*June 29, 2016*

**stats**

1. Suppose that you are taking a quiz of 6 multiple- choice questions (the instructor chose the questions randomly), each question having 6 possible responses. You did not study at all for the quiz and will randomly guess the correct response for each question. The random ...

*June 27, 2016*

**Travel and Tourism**

What is the most successful marketing strategy for Travel Agents and Tour Operators?

*May 29, 2016*

**Math **

How do I use the distributive property to rewrite the math problem 5(4 - y?

*May 28, 2016*

**Math**

Rhonda bought a new jacket that originally cost $80. It was on sale for 20% off. The store charges a 6% sales tax. what is the total cost for jacket?

*May 10, 2016*

**Chemistry**

A 0.18 g sample of unknown was placed in a flask and dissolved in 125 mL of deionized water. A solution of HCl (0.13 M) was used to titrate the sample, and 16 mL was required to reach the endpoint. What is the formula weight of the unknown?

*April 24, 2016*

**Algebra**

Please help ASAPPP!!!! I have no idea how to even start on this! f(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps and wrote your final answer in factored form. If someone could help me work through this problem that would be great!

*April 20, 2016*

**physics**

Two electrically-charges spheres are suspended from insulated threads a certain distance from each other. There is a certain amount of electrostatic force between them. Describe specifically (not just increase or decrease) what happens to this force in each of the scenarios ...

*April 9, 2016*

**History**

C: the value of paper money decreased, leading to inflation

*April 4, 2016*

**Math**

Company A charges $5 plus $0.10 per kilometre, company B charges $1 plus $.50 per km how far could you go and still pay less then company A? you need to use a inequality is what the teacher said

*April 3, 2016*

**Science**

The water in a puddle has a mass of 1500 grams. The sun comes out and the puddle evaporates. How many grams of water vapor enter the air from the puddle?

*March 31, 2016*

**Math**

What is the largest whole number that will round up or down to 900900900 if we're rounding to the nearest hundred

*March 22, 2016*

**Math**

please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work.Sn: 12 + 42 + 72 + . . . + (3n - 2)2 = n(6n^2-3n-1)/2 Also, please show ...

*March 14, 2016*

**chemistry**

at certain altitude in the upper atmosphere, the temperature is estimated to be -100 degree celsius and the density just 10^-9 that of the earth's atmosphere at STP. Assuming a uniform atmosphere at STP. Assuming a uniform atmospheric composition, what is the pressure, in ...

*March 14, 2016*

**calculus**

Find the point on the line –3x+4y–5=0 which is closest to the point (0–5)

*March 10, 2016*

**Math**

Eric's notebook has 30 pages he wants to number all the pages beginning with 1 how many digits will he write when he writes in his notebook

*March 9, 2016*

**Chem**

The three substances that can reduce Ag+ to Ag, but will not reduce Sn2+ to Sn are Zn Pb H2 Mg Cu I2 Al Ca

*March 1, 2016*

**chemistry**

The three substances that can reduce Ag+ to Ag, but will not reduce Sn2+ to Sn are Zn Pb H2 Mg Cu I2 Al Ca

*March 1, 2016*

**Finite**

Kane Manufacturing has a division that produces two models of hibachis, model A and model B. To produce each model A hibachi requires 3 lb of cast iron and 6 min of labor. To produce each model B hibachi requires 4 lb of cast iron and 3 min of labor. The profit for each model ...

*March 1, 2016*

**Algebra**

The lighting for a billboard is provided by solar energy. If 6 energy panels generate 10 watts of power, how many panels are needed to provide 550 watts of power?

*March 1, 2016*

**Chemistry **

The three substances that can reduce Ag+ to Ag, but will not reduce Sn2+ to Sn are Zn, Pb, H2, Mg, Cu, I2, Al, Ca

*February 29, 2016*

**Calculus**

thank you very much! It has taken me almost 2 hours to do this

*February 26, 2016*

**Calculus**

Water is leaking out of an inverted conical tank at a rate of 13500.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 12.0 meters and the diameter at the top is 5.5 meters. If the water level is rising...

*February 26, 2016*

**Chemistry **

2NO + O2 yield 2NO2 Suppose that a particular moment during the reaction nitrogen monoxide (NO) is reacting at the rate of 0.074 M/s -1. At what rate is NO2 being formed?

*February 10, 2016*

**algebra **

The sum of two and the product of one and a number xx.

*February 8, 2016*

**Physics**

How do you calculator the percent error from a graph?

*February 5, 2016*

**Physics**

What would the percent error of the experimental value of g be if the accepted value is 9.8 m/s^2? The slope equation is y=.5001430132x-.0109639087

*February 5, 2016*

**Physics**

What would the experimental value of g be if the slope of the graph represents 1/2 g and the equation is y=5.00x-.0109639087

*February 5, 2016*

**Algebra 2**

I'm sorry I don't really get matrices, but can you please walk me through the steps of algebraically doing elimination if you know what that is.

*January 29, 2016*

**Algebra 2**

Solve each system. x-4y-6z=-34 -7x+5y-7z=-24 z=5x-7y+18 These are my answers below but I know that they are wrong: x=-3894 y=-112852 z=-107,509,144 I have tried to solve this system probably 10 times, and still not getting an answer that checks back into the original equation...

*January 29, 2016*

**Chemistry 102**

Using your average value for Kc (6.92x10^2) and the concentrations provided for the reactants (0.00111mol/L for both), determine the absorbance expected when a 16.00mL of Fe3+ is reacted with 10.00ml of SCN and measured in a 1.00cm cuvette.

*January 27, 2016*

**Math **

4e^(-.03x)-7=13

*January 13, 2016*

**Algebra**

A=Lw P=2L+2w 400=2L+2w 400-2L=2w -2L=-400+2w L=200-w A=(200-w)(w) A=200w-w^2 A=-w^2+200 -b ----- = 2a -200 -------= 2(-1) -200 ------- = -2 100 Y=400-100 Y=300 So the. Would the length for each side of the rectangle be 50 and the width be 150?

*January 12, 2016*

**Algebra**

You have 400 feet of fencing to enclose a rectangular plot. Find the length and width of the plot that will maximize the area. What is the largest area that can be enclosed? I'm not sure how to start. We haven't learned this yet in class.

*January 12, 2016*

**Math log equation **

5^2x+20*5^x-125=0

*January 11, 2016*

**Math log help**

Log3(x)=log9(6x)

*January 11, 2016*

**Math**

Yes

*January 11, 2016*

**Math**

10^3x-8=2^5-x

*January 11, 2016*

**Math**

Log3(x)=log9(6x)

*January 11, 2016*

**Math logs**

10^3x-8=2^5-x

*January 11, 2016*

**Algebra logs please help**

Log3(x)=log9(6x)

*January 11, 2016*

**chemistry **

Mno4- + So3-2 = Mno2 + sO4-2 (in neutral solution,but H+ ions will appear in the final question) solve this redox reaction and give me the method also Thank you

*January 10, 2016*

**Math**

what are the inputs of the following funtions {(-3,2),(-4,2),(8,3),(7,1)}

*November 20, 2015*

**college algebra**

The rodent population in a city is currently estimated at 70,000 and is growing according to the Malthusian model. If it is expected to double every 3 years, when will the population reach one million? (Round your answer to one decimal place.)

*November 12, 2015*

**Spanish**

Your answer was not correct.

*November 6, 2015*

**Geography**

How does changing scales help better understand issues such as IMR and CMR

*October 29, 2015*

**Calculus**

You need to do the fencing of two side by side areas with 102 meters of wood fencing. What is the maximum area that you will be able to enclose?

*October 25, 2015*

**Math**

Simplify 3^2 x 5^-3 x 2 Divided by 2^-8 x 3^5 So confused!!

*October 20, 2015*

**Physics **

A ship sets sail from Rotterdam, The Netherlands, heading due north at 5.00 m/s relative to the water. The local ocean current is 1.54 m/s in a direction 40° north of east. What is the velocity of the ship relative to the earth?

*October 1, 2015*

**Physics, math**

What is the answer to this? I don't understand how to solve it. 1.2 = 4.6 tan 50 - 4.9 (4.6^2)/(x^2 cos^2 50)

*September 27, 2015*

**Physics**

A basketball player shoots a free throw at a 50 degree angle. Assume the ball is released at a height of 1.8 meters, the hoop is 3 meters off of the floor and 4.6 meters away from the shooter. With what velocity should the player release the ball to hit nothing but net? I have...

*September 27, 2015*

**Physics**

A basketball player shoots a free throw at a 50 degree angle. Assume the ball is released at a height of 1.8 meters, the hoop is 3 meters off of the floor and 4.6 meters away from the shooter. With what velocity should the player release the ball to hit nothing but net?

*September 27, 2015*

**english help please!!**

I think the reason that she never read the novel is because the teacher gives you only one chapter at first so that you can try to guess the theme of the novel.

*September 23, 2015*

**Math**

A car travels 480 miles on 15 gallons of gasoline. How many miles does the car travel per gallon? My work Myself shows the answer is 32 mi/gal

*September 17, 2015*

**History**

Strong Monarchs and large nation-states in the 1400 helped to? A.increase interest in exploration B.overthrow the bristish empire C.decrease the demand for spices D.make all Europeans wealthy I think its b but please help

*September 2, 2015*

**Math**

A bag contains 5 red, 7 yellow, 8 green markers. What is the p(two green markers) will be chosen if the markers are not replaced as they are chosen?

*September 1, 2015*

**Math**

What is the circumference of a circle with a point at the center located at (7,5) and a point of the edge (7,12)? Tell me how you can find the answer!

*August 31, 2015*

**Math**

Kevin is riding a bike with a 1.5 feet diameter. If the tire makes 100 rotations, how far has Sherry traveled? don't tell me the answer show me how you can find the answer?

*August 30, 2015*

**Math**

What is the probability of rolling two dice and getting 3 and a 6? and could you explain how you would get the answer?

*August 27, 2015*

**Algebra**

Alexis bought x boxes of cereal for $3 each, including tax, and paid with a $20 bill. Which expression represents the total amount of change she should receive. Whats the answer?

*August 25, 2015*