Tuesday

May 26, 2015

May 26, 2015

Total # Posts: 660

**math**

The demand for the video game is modeled by the logistic curve, where q(t) is the total number of units sold t months after its introduction. q(t)= 10000/(1+0.5 e**(-0.4t)) (a) Use technology to estimate q'(4) to the nearest integer. mark units per month (b) Assume that ...
*October 14, 2011*

**Calculus**

s(x)=log3(x^2+6x) find derivative?
*October 14, 2011*

**Calculus**

need derivative
*October 14, 2011*

**calculus**

t(x)=((x+4)^0.1-5x)^-5.1
*October 14, 2011*

**Calculus**

g(x)=(1)/(2e^(x)+4e^(-x))
*October 13, 2011*

**Physics**

Thanks :)
*October 8, 2011*

**Physics**

Let vector B = 8.8 m, 75 degrees counterclockwise from the vertical. a) Find the x- and y-components of vector B in the normal coordinate system (where x is a horizontal line and y is a vertical line...both intersect each other). b) Find the x- and y-components of vector B in ...
*October 8, 2011*

**trig**

Triangle PQR is congruent to P'Q'R. If PQ= x+y, P'Q'+10, Q'R'= 3x-y, and QR=14, then what is x and y?
*October 5, 2011*

**Physics**

A sprinter can accelerate with constant acceleration for 2.70 s before reaching top speed. He can run the 100-meter dash in 10 s. What is his speed as he crosses the finish line? Please show me all the steps to solving this problem. Thanks
*October 5, 2011*

**Science**

What are the surface area, volume, surface area:volume, and distance of diffusion for the following dimensions: 1 cm x 1 cm x 1 cm 2 cm x 2 cm x 2 cm 1 cm x 1 cm x 6 cm
*September 28, 2011*

**science**

for the three cubes shown below, determine their surface area, volume and surface area to volume ratio. Then circle the one you believe would be the most efficient and write a summary stating why. 1.5 cm x 1.5 cm x 1.5 cm .5 cm x .5 cm x 6 cm 3 cm x 2 cm x 2 cm
*September 28, 2011*

**world history**

What is the connection between the policy of laissez faire and natural economic laws?
*September 28, 2011*

**Algebra**

I can't get this problem, could you please help me? Solve each system of equations x+2y=12 3y-4z=25 x+6y+z=20
*September 25, 2011*

**chemistry**

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC
*September 23, 2011*

**chemistry**

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC
*September 23, 2011*

**English **

Did I revise this passage correct? Heroes come in all shapes and sizes. Women and men, adults and children. However, one hero looked quite different from what you might imagine. Living in Czechoslovakia after World War II and name Antis. This hero was a German shepherd dog. ...
*September 22, 2011*

**physics**

a plane heads north but because of a wind blowing to the west the plane flies at a resultant velocity of 620mi/h 22 W of N . what was the velocity of the wind?
*September 21, 2011*

**trig**

how do you factor completely.. 18x^2+3x-3?
*September 11, 2011*

**pre algebra**

the sum of my tens digit and units digit is 6 the product is 0
*September 7, 2011*

**business**

Optional Assignment Search the internet for an example of the power or politics in an organization, identify how it has been used and relate it to the theory we have studied this week. Your APA formatted MS Word paper should be a minimum of one page in length. (Make sure to ...
*September 4, 2011*

**English **

please explain the statement "The suitors are an embodiment of a heroic society in decay" I have to write a paper and would like to better understand that statement. This is from the epic Odyssey.
*August 28, 2011*

**English **

Did he tell you anything, or is he still ---------cat---? I can't think of the word, please help. It's a 15 letter word.
*August 25, 2011*

**helping abused children**

Thanks Ms. Sue for all your help
*August 8, 2011*

**helping abused children**

is number 7 and 11 asking the same thing? to me the answers are the same here is number 7 7. If a girl, age 7, approaches you in the classroom and tells you that her mother’s live-in boyfriend is abusing her, a good way to respond would be to say: A. “Don’t ...
*August 8, 2011*

**helping abused children**

Im still stuck on number 11 and 17 will you please help 11. As a teacher aide, if a child wishes to speak to you about an incident of abuse, what should you do first? A. Assure the child that you can help B. Find a quiet place were you can talk uninterrupted C. Assure the ...
*August 8, 2011*

**Helping Abused children**

Please help 4. As a teacher aide, if you report an incident of child abuse, A. you must be able to prove your allegations to the authorities. B. you’ll most likely be asked to testify in court. C. you should keep all information related to the case confidential. D. you&#...
*August 3, 2011*

**resources for education young children part 3**

I have three questions hope you can help 2. Which one of the following statements regarding the use of software in class is true? a) the emphasis of the program should be solely on repletion b) it should allow children to make their own decisions rather than simply finding the...
*July 23, 2011*

**Resources for Educating young Children Part 2**

Thanks ms.sue I will go with 11 a) too Its confusing to me too
*July 15, 2011*

**Resources for Educating young Children Part 2**

I was wondering if someone could please help? My questions are: 5. Which one of the following statements about adapting a curriculum to children with learning differences it true? a) when teaching mathematics, always try to relate the concept to its use in everyday life b)don...
*July 15, 2011*

** Resources For Educating Young Children, Part 1 **

could you help me with any suggestions for 6 i'm kinda confused about this one do you think b for 8
*July 8, 2011*

** Resources For Educating Young Children, Part 1 **

I have a few more questions to ask they are 1. Mike becomes angry when he can’t solve a mathematical problem, and slams his book down on the desk. Since his behaviour is disruptive to his classmates, you wish to devise a scale by which you can gauge the impact it has on ...
*July 8, 2011*

**Resources For Educating Young Children, Part 1 **

I know that I asked you about question 3 but I changed my mind 3. Which one of the following is true regarding group activities? a) Its not necessary for each child to participate b) a role should be planned for each child in the activity c) activities should focus on a ...
*July 6, 2011*

**Resources For Educating Young Children, Part 1 **

thankyou ms. sue great help
*July 6, 2011*

**Resources For Educating Young Children, Part 1 **

for number 3 do you agree with B and 16 A sorry 17 was supposed to be discipline sorry for the type o
*July 6, 2011*

**Resources For Educating Young Children, Part 1 **

I was wondering if you could please help me My questions are 3. Which one of the following is true regarding group activities? a) Its not necessary for each child to participate b) a role should be planned for each child in the activity c) activities should focus on a specific...
*July 6, 2011*

**nutrition**

b/c he wasn't taking care of himself on his own and he has no other family
*July 2, 2011*

**nutrition**

Case Study: You are a dietician. You are a friend of Mitch’s family and have been asked to help develop a nutrition and exercise plan for Mitch. Mitch is a 67 year old male that has been gaining weight over the last three years. He is 5’11’ and weighed 165 lbs ...
*July 2, 2011*

**The Teacher Aide in Early Childhood Education Prog**

thanks for your input
*June 24, 2011*

**The Teacher Aide in Early Childhood Education Prog**

Why I picked these answers are from my text for 2 There are many organizations who are speaking out for these disadvantaged children. These organizations, known as child advocacy groups, make sure that the government and other funding agencies are aware of the needs of the ...
*June 24, 2011*

**The Teacher Aide in Early Childhood Education Prog**

Could you please help 2. One of the primary concerns of child advocacy groups is A. the need to provide more supervisory care for children. B. providing children with sports, games, and arts and crafts activities. C. the problem of low wages for early childhood educators. D. ...
*June 24, 2011*

**Language and other barriers**

Could you check my answers Please 11. ESL programs in Canada first became widespread as a result of A. an increased influx of immigrant students in our nation’s public schools during the 1970s. B. the Canada Clause of 1982. C. a large number of German immigrants who ...
*June 18, 2011*

**Language and other barriers**

are the rest wrong then
*June 18, 2011*

**Language and other barriers**

I was wondering if you advise me if my answers are right please help 4. To be a truly successful teacher aide in a nonbiased, culturally diverse classroom, you must A. be concerned about and aware of the problems of both minority and nonminority students. B. be particularly ...
*June 18, 2011*

**history**

what was the period of time after the roman empire called?
*June 14, 2011*

**Instructional materials:Their preparation and Use**

if you could help please do 3. A document camera is more versatile than an opaque projector because you can use it to A. record sound. B. project three-dimensional objects. C. display book pages on a screen. D. view colored items. 4. Which one of the following guidelines ...
*June 9, 2011*

**maths**

i have fopur questions like this but don't undersand them. thanks Rearrange the formula a=(7/b+1)-4 to make b the subject
*May 30, 2011*

**Algebra I**

"A car is traveling at r speed. A plane is traveling at 5r speed. When will they both reach 200 miles?"
*May 23, 2011*

**overview of teaching techniques**

8. Which one of the following guidelines should be followed when giving directions to students? A. Don’t allow students to choose the activity—make all decisions yourself. B. Require students to find their own background information and necessary materials. C. ...
*May 23, 2011*

**electrons in atoms**

What is the wavelength of the emitted photon, when the electron in the hydrogen atom makes a transition from the ni = 5 state to the nf = 3 state?
*May 22, 2011*

**Algebra**

How do you graph y=-1x
*May 19, 2011*

**classroom management techniques**

I read it but didnt understand your reasoning
*May 15, 2011*

**classroom management techniques**

14. Which of the following is part of the strategy of modifying behavior? A. Analyze the behavior that needs changing. B. Inform the student that he or she needs to change his or her behavior. C. Ignore students who demonstrate a need for attention. D. Ensure that the ...
*May 15, 2011*

**classroom management techniques**

Why do you choose 14. as D please explain
*May 15, 2011*

**classroom management techniques**

14. Which of the following is part of the strategy of modifying behavior? A. Analyze the behavior that needs changing. B. Inform the student that he or she needs to change his or her behavior. C. Ignore students who demonstrate a need for attention. D. Ensure that the ...
*May 15, 2011*

**Punctuation**

If there is practice after school on Friday, I can drop the kids off, and pick them up
*May 11, 2011*

**Punctuation**

Ruby emailed her instructor, a question and he replied immediately
*May 11, 2011*

**enhancing chilfrens self esteem**

ThANK YOU MS SUE. It wa a great help thanks again. beth
*May 8, 2011*

**enhancing children's self-esteem**

thank you Ms. Sue With your renenforcement I passed my test. I got a 100% I can't thank enough for the help.
*May 8, 2011*

**enhancing children's self-esteem**

16. The best "measure" that a person has achieved high self-esteem is a. a record of strong academic performance b. confidence in a social situation c. self- sufficiency d. strong family relationships 10. When setting guidelines or rules for children and enforcing ...
*May 8, 2011*

**algebra**

If there are 5280 feet per mile, how many inches are there in 3 miles?
*May 8, 2011*

**Algebra**

How do you express the sum of 5y-3/9 and 2y-1/2
*May 8, 2011*

**maths**

The chance of getting a particular disease sometime during your lifetime is estimated at 1 in 20. Smoking increases the risk of developing the disease during your lifetime by 20%. How many people out of a group of 1000 smokers would you expect to get the disease sometime ...
*May 8, 2011*

**algebra 2 review**

A training ring for horses is an oval formed from a rectangle with two semicircles on either end. Rounded to the nearest foot, how many feet of fencing is required to surround the entire ring with a fence?
*April 28, 2011*

**Algebra 2 review**

Bob and Latoya both drove to a baseball game at a college stadium. Bob lives 70 miles from the stadium and latoya lives 60 miles from it. Bob drove at a rate of 50 miles/hour and Latoya drove at a rate of 40miles/hour. If they both left home at the same time, who got to the ...
*April 28, 2011*

**Algebra 2 review**

In triangle ABC, the ratio of the measure of angle A to the measure of angle B is 3:5. The measure of angle C is 20 more than the sum of the measure of angles A and B. What is the measure of each angle in triangle ABC?
*April 28, 2011*

**physics**

Young's modulus for a rod is 4 X 4x10 to the 11th power. what strain will be produced by a tensile stress of 420 MPa? I don't know where to start with this...
*April 27, 2011*

**statistics**

2.28%
*April 11, 2011*

**Physics**

A 20 kg rod is 3 meters long and is attached to the wall by a hinge at point A and is held at the angle indicated by cable BC. Find the force in the cable and the forces in the x and y-directions at the hinge A. (center of mass in middle of rod downwards) There's a diagram...
*April 10, 2011*

**Chemistry**

How much water must be added to 24.0 grams of salt ot make a solution that is 12.0% by mass?
*April 9, 2011*

**chem**

wait.. im now stumped on this one Calculate the pH of each of the following solutions. [OH - ] = 1.1 10-11 M
*April 6, 2011*

**chem**

nvm i got it thanks anyways:)
*April 6, 2011*

**chem**

Calculate [H3O+] for each of the following solutions. a)pH = 8.59 i got 3.00e-9 but it said it was wrong. what am i doing wrong. im using the equation 10-ph = [H30+]
*April 6, 2011*

**chem**

Oh ok, thanks!
*April 6, 2011*

**chem**

Calculate the pH of each of the following solutions. (a) [H3O+] = 2.9 10-10 M- I got 9.5 but its wrong. I used the equation pH= -log[H3O+] Is this the wrong equation? (b) [H3O+] = 6.4 10-2 M thanks:)
*April 6, 2011*

**chem**

THANKS:)
*April 3, 2011*

**chem**

If 0.752 g of pure sodium carbonate was dissolved in water and the solution titrated with 25.90 mL of hydrochloric acid to a methyl orange end point, calculate the molarity of the hydrochloric acid solution. (Hint: This process takes the carbonate ion to carbon dioxide.) Do I ...
*April 3, 2011*

**Calculus**

Find the area of the region enclosed by one loop of the curve. r = sin(12θ)
*April 3, 2011*

**hypothesis testing**

No
*March 26, 2011*

**algebra**

how do I rewrite this 4ã20
*March 24, 2011*

**algebra**

divide 3z-18z z-6 10 55z
*March 24, 2011*

**algebra**

convert to decimal natation 8.93x10^7
*March 24, 2011*

**Physics=Please check**

Thank you for all your explanations-it really helped alot
*March 22, 2011*

**Physics=Please check**

I have an electrical circuit which has 20V shown on left side I=0.8A on top I = 0.3A on bottom I have to find the resistance Would I add 0.8 + 0.3 and then use the formula V = IR so it would look like this: 20V = 1.1A x R 20V x 1.1A = R
*March 22, 2011*

**algerbra**

how to solve 3a+2[2+3a(a-1)]=2(3a+4)
*March 21, 2011*

**Spanish 7th grade-please check**

How doyou ask if a friend if they are hungry? Tienes hambre? If they are thirsty Tienes sed? Both should have upside down question marks before question
*March 21, 2011*

**physics**

A rectangular container measuring 24 cm 48 cm 55 cm is filled with water. What is the mass of this volume of water in kilograms?
*March 19, 2011*

**math**

Your Porsche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour. It is found that M'(x) = 3,600x−2 − 1 (3,600x−1 + x)2 . Estimate M'(10), M'(60), and M'(110). (Round your answers to seven decimal ...
*March 9, 2011*

**calc**

Evaluate the given expression. d dx [2(x2 + 3|x|)] 1
*March 7, 2011*

**calc**

Calculate dy dx . You need not expand your answer. y = (9x2 + x)(x − x2)
*March 7, 2011*

**calc**

Compute the indicated derivative. q(p) = 2.5 p + 3.2; q'(5) 1
*March 3, 2011*

**math**

The function gives the cost to manufacture x items. C(x) = 20,000 + 5x − x2 20,000 ; x = 20,000 Find the average cost per unit of manufacturing h more items (i.e., the average rate of change of the total cost) at a production level of x, where x is as indicated and h = ...
*March 3, 2011*

** math**

thanks
*March 3, 2011*

**maths**

Make k the subject of the following two equations. 1) 8k+2=3(4k+t) 2)7k+11t=5-9kt
*February 27, 2011*

**Discrete Math**

f: A→B, g: B→A Is g ° f defined? If so, what is its domain and range?
*February 16, 2011*

**Maths**

Y is directly proportional to x If y= 10 when x=-5 what is the value of y when x =30. The answer should be a number.
*February 9, 2011*

**chemistry**

Calculate the mass for: A gold sample that absorbs 225 J to change its temperature form 15 degrees celsius to 47 degrees celsius.
*January 31, 2011*

**maths**

Suppose that y is directly proportional to x. If y = 10 when x = −5, what is the value of y when x = 30?
*January 25, 2011*

**math**

1 2 4 42 1882
*January 24, 2011*

**Ogle**

A string is cut in half, and one of the halves is used to bundle newspapers. Then one fifth of the remaining string is cut off. The piece left is 8 feet long. how long was the string originally.
*January 12, 2011*

**chemistry**

if you react magnesium solution and lead powder together is there a temperature change?
*January 9, 2011*