Wednesday

August 24, 2016
Total # Posts: 3,360

**Physics **

The angular velocity of a process control motor is (21−12t2) rad/s, where t is in seconds. A)At what time does the motor reverse direction? I got 6.5s B) Through what angle does the motor turn between t =0 s and the instant at which it reverses direction? Can you help ...
*May 5, 2014*

**Algebra 1b**

Determine the equation of g(x) that results from translating the function from f(x)=(x+2)^2 to the right 6 units
*May 4, 2014*

**statistics**

It has been suggested that the rate of forgetting (coded as normal vs. fast) for word lists often used in psychological experiments may depend on the type of memory test employed, either free-recall or recognition. What is the best way to test this hypothesis? a. regression b...
*May 3, 2014*

**Homework helpline?**

multiply [-1]9=
*April 28, 2014*

**MATH STATS URGENT**

The Houston Rockets and San Antonio Spurs will play a "best two out of three" series. Assume that Houston has a probability of 1/3 of winning any game. a. Draw a probability tree showing possible outcomes of the series. Label the branches with appropriate ...
*April 25, 2014*

**MATH STATS URGENT**

The Houston Rockets and San Antonio Spurs will play a "best two out of three" series. Assume that Houston has a probability of 1/3 of winning any game. a. Draw a probability tree showing possible outcomes of the series. Label the branches with appropriate ...
*April 24, 2014*

**Math**

The Houston Rockets and San Antonio Spurs will play a "best two out of three" series. Assume that Houston has a probability of 1/3 of winning any game. a. Draw a probability tree showing possible outcomes of the series. Label the branches with appropriate ...
*April 24, 2014*

**Math**

A marble is drawn from a bag containing four white, three red, and two blue marbles. Without replacing the first marble, a second marble is drawn. a. Draw a two stage outcome tree for this experiment. b. Turn the outcome tree into a probability tree diagram by labeling all of ...
*April 24, 2014*

**World History**

Which of the following is true of the Antarctic Treaty System?
*April 24, 2014*

**english**

i have an assignment and i have already finished it. which is on writing a film review and there are 5 paragraphs to it so i already wrote the 4 paras but in the last paragraph it says you have to write two sub points and 2 descriptive evidences on how this connects to the ...
*April 21, 2014*

**MATH**

An open box with a square base is to be made from a square piece of cardboard 24 inches on a side by cutting out a square of side x inches from each corner and turning up the sides.Graph V=V(x)
*April 18, 2014*

**Math**

How many pounds of coffee worth $7.50 per pound must be blended with coffee worth $9.50 per pound to make a mixture of 12 pounds of coffee worth $8.00 per pound?
*April 17, 2014*

**chemistry**

I have the answers, I am just interested in the formulas so that I can solve the problems, thanks! 1. Find the boiling point of a solution composed of 110g of HgCl2 (a non-ionizing solute) in 175g of water. 2. Find the freezing point of a solution composed of 50g IBr in 120 g ...
*April 15, 2014*

**trig**

A car is on a driveway that is inclined 12 degrees to the horizontal. A force of 470lb is required to keep the car from rolling down the driveway. a) Find the weight of the car b) Find the force the car exerts against the driveway
*April 14, 2014*

**Food and Nutrition**

canada*
*April 12, 2014*

**Food and Nutrition**

How is "Healthy Ice-Cream Alternate Sandwich" a healthy recipe?? Ingredients: 10-12 ripe bananas 1/.5 cup of strawberries 22 graham crackers Procedure: 1)Mash the bananas and make a mixture with the strawberries and bananas 2)Freeze the mixture 3)put the mixture ...
*April 12, 2014*

**Food and Nutrition**

thankyou this is what I needed. I appreciate your help
*April 11, 2014*

**Food and Nutrition**

this is only about a children's party..at parties wut affects their nutrtion for example a social challenge can be what their friends are eating they will eat. STUFF LIKE THAT
*April 11, 2014*

**Food and Nutrition**

I need to find the relationship between nutritional needs and : -social challenges -emotional challenges -physical challenges at childrens parties. I just want some points so I can expand my powerpoint
*April 11, 2014*

**Food and Nutrition**

I understand the assignment..i just can't think of some points that is why im on this website.. you don't understand what im trying to ask??
*April 11, 2014*

**Food and Nutrition**

i dont really know...
*April 11, 2014*

**Food and Nutrition**

Children's Parties The stage 'children (ages 4-12 years) Relationship between nutritional needs and: - physical challenges -emotional challenges -social challenges THESE RELATIONSHIPS REGARDING CHILDREN AT PARTIES AND FOOD.... i just need some points..
*April 11, 2014*

**University**

yes so it doesnt matter whether i get a degree from college or university right? At workplace it will be treated the same right?
*April 10, 2014*

**University**

yeah that's why i putin Canada..bcz ik states go differently
*April 10, 2014*

**University**

Well so I applied to many Universities in Canada, and I applied to many colleges..I got into Bachelor of Child Development at Seneca college also Bachelor of Commerce. I don't think I will get into a University. Is it bad in the future if I have a degree from College not a...
*April 10, 2014*

**english**

Fascinated,Nina stared at the stranger.Who was standing in the doorway. She wondered if she could convince him they had met before. Where is the fragment and how do I fix it?
*April 9, 2014*

**chemistry**

what is the molecular mass of a gas if 0.833 g of it occupies 210 mL at 106.3 kPa and 8 degrees Celsius.
*April 6, 2014*

**maths**

i am a
*March 30, 2014*

**Math please check my answer?**

Thank you. :)
*March 27, 2014*

**Math please check my answer? **

This is my last question. What is the domain of the function below? f(x)= e^(x-4)-2 I got all real numbers is that correct?
*March 27, 2014*

**Math**

What is the domain of the function f(x)= x+6? I got -infinity < x < infinity
*March 27, 2014*

**Math**

What is the domain of the function f(x)= -3^(x+3)+4? I got (-infinity, infinity) is that correct?
*March 27, 2014*

**Math **

What is the domain of the function f(x)=2^(x+3)-1? I got (-infinity, infinity) is that correct?
*March 27, 2014*

**Math **

Rewrite the equation y - 37x = 82 as a function of x. I got f(x)= -37x +82 is that right?
*March 27, 2014*

**Math**

The length of a table is 3 1/3 inches. The width is 1/5 of length. Find the width and perimeter of table
*March 26, 2014*

**Enghish Identify pronoun errors**

case
*March 25, 2014*

**Math**

Today you deposited $5000 into a savings account paying 12% interest. How much should you have in 15 years?
*March 21, 2014*

**english**

Which synonym of the word look would be most effective in the following sentence? Detective Flint leaned forward with narrowed eyes to _______ what appeared to be a vital clue. A. survey B. scrutinize C. view D. ogle I think it would be B.
*March 20, 2014*

**Math**

Any began a running program she ran less than 5/6 of a mile what part if a mile could any have run
*March 19, 2014*

**math**

Eddie walked 3/4 miles from his home to the park then walked 2/4 miles from the park to the library which distances is shorter
*March 17, 2014*

**Physics**

what type of heat transfer does solar hot water heating use? (conduction, convection, radiation)
*March 10, 2014*

**arithmetic**

Points of intersection 1
*March 9, 2014*

**physical science**

An airplane trvels with a velocity of 200 mi/h in a direction 30 deg. west of north of 1.50 h. How far north and how far west is it from its starting point?
*March 7, 2014*

**Physics -- check answers please (new)**

1. Which of the following best shows the transfer of heat by radiation? a) the hot sand in very painful to step on with bare feet b)the soup pot boils from the bottom towards the top c)the wood stove is painted a flat black colour for maximum heating effect d)the use of fossil...
*March 4, 2014*

**Physics -- check answers please**

1. Which of the following best shows the transfer of heat by radiation? my answer: c 2. Which of the following best shows the transfer of heat by convection? my answer: b 3. Water has specific heat of 4200 J per kilogram per degree celsius. This means that 2 kg of water will ...
*March 4, 2014*

**US history **

1. In the early years of the war, all reports coming to the USA had to be “cleared” through England. 2. In the 1916 presidential election, Republicans used the slogan “He kept us out of war” against Wilson. 3.Wilson’s Fourteen Points called for self-...
*March 4, 2014*

**Economics**

A clinic has $1 million in revenues and $950,000 in costs. What is its operating margin? My answer is 5% However the second question is if the clinic invested $400,000. What is the return on investment and is it adequate. Not sure how I calculate that. Would I take the 5% of $...
*March 4, 2014*

**Physics -- check answers please**

1. what is 67 K equivalent to in Celsius? answer: -206.15 C 2. what is 458.9 Celsius in K? answer: 732.05 3. heat is closely related to: a)temperature b)thermal energy c)force d)convection currents answer: b 4. What does a low efficiency score reveal about a home in terms of ...
*March 3, 2014*

**Mathmatics**

Create a program that uses the same formula above to output the result; this time, however, prompt the user for the values a, b, x, and y. Use appropriate variable names and naming conventions.
*March 3, 2014*

**Chemistry**

Oh okay, thankyou!
*March 2, 2014*

**Chemistry**

I know I'm suppose to use 3.86934 as the first volume and 10 kPa as the second pressure, but what am I suppose to use as the first pressure? Am I suppose to use 20.0 km?
*March 2, 2014*

**Chemistry**

A weather balloon with a volume of 3.86934 L is released from Earth’s surface at sea level.What volume will the balloon occupy at an altitude of 20.0 km, where the air pressure is 10 kPa? Answer in units of L
*March 2, 2014*

**Physics -- check answers please**

1. what is 67 K equivalent to in Celsius? answer: -206.15 C 2. what is 458.9 Celsius in K? answer: 732.05 3. heat is closely related to: a)temperature b)thermal energy c)force d)convection currents answer: b 4. What does a low efficiency score reveal about a home in terms of ...
*March 2, 2014*

**science**

unscramble rorpsfgnloaedeasi
*March 1, 2014*

**Social studies**

Help me to write an acrostic about motion.
*February 27, 2014*

**Economics Supply and Demand**

The demand function is Q=600-P with P being the price paid by consumer. I know the first P is $400 and Pnet is 160. There is 40% co insurance,. How do I figure out the quantity demanded? Our instructor said it was 440 but how do you get to that number?
*February 27, 2014*

**IFSM 300**

The sales department tells management that they can increase revenue by 20 percent by increasing sales 20 percent, but the production department says that to achieve that number of units, they will have to buy a new piece of equipment that will add $200,000 to the appropriate ...
*February 26, 2014*

**IFSM 300**

The sales department tells management that they can increase revenue by 20 percent by increasing sales 20 percent, but the production department says that to achieve that number of units, they will have to buy a new piece of equipment that will add $200,000 to the appropriate ...
*February 26, 2014*

**Stats**

0.2845 0.6984
*February 25, 2014*

**Economics/Forecasting**

If you anticipate that volume will increase at your clinics by 4% next year. Forecast visits for each clinic, and explain what assumptions underline your forecast. Can someone give me an example please not sure what it is asking.
*February 25, 2014*

**Physics-check answer please (multiple choice)**

1. A 2.5 kg mass at rest on a horizontal surface is acted upon by an applied horizontal force of 150 N. A frictional force of 100 N acts on the mass. How much work is done on the mass? my answer: would the work be 0? 2. When a rock is thrown straight up in the air, after it ...
*February 24, 2014*

**math**

Each user has a password 6 characters long where each character is an uppercase letter, a lowercase letter, or a digit. Each password must contain at least one digit. How long will it take to check every possible character combination, if each check takes one unit of time.
*February 24, 2014*

**Physics -- check answers please**

1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational potential energy of a bird ...
*February 23, 2014*

**physics**

how far does a wave travel in one period?
*February 23, 2014*

**Physics -- check answers**

1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational potential energy of a bird ...
*February 23, 2014*

**chemistry**

Electronegativity is a concept that is useful along with other concepts in predicting the polarity of a bond deciding how many electrons are involved in a bond formulating a statement of the octet rule determining the charge on a polyatomic ion
*February 23, 2014*

**Chemistry**

which of the following sets of elements is arranged in order of decresing electronegativity? O,S,As Cl, B, CL Br, Cl, P Be, C, O please explain correct answer
*February 23, 2014*

**chemistry**

what is the geometry of the molecular compound formed by the reaction of sulfur with hydrogen? linear angular trigonal planar tetrahedral please explain the correct answer
*February 23, 2014*

**chemistry**

VSEPR theory predicts that the geometry of AsH3 molecule is which of the following. linear trigonal planar trigonal pyramidal tetrahedral please explain the correct answer
*February 23, 2014*

**math**

convert 20 pounds to kilograms then round to the nearest tenth
*February 23, 2014*

**american government**

McCulloch v Maryland is an important case because it was one of the cases whereby the Supreme Court (Points : 1) asserted the supreme authority of Congress. asserted national authority over the states. upheld states’ rights. affirmed Maryland’s right to tax national...
*February 21, 2014*

**american government**

In Gibbons v. Ogden, the Supreme Court held that (Points : 1) states’ rights to regulate may not trample on powers specifically reserved for Congress. states’ rights supersede national authority. the national government does not have interstate commerce authority. ...
*February 21, 2014*

**advanced functions**

=the height in metres of a weather ballon above the ground after t seconds can be modelled by the function h(t)=-2t^3+3t^2+149, for 0<t<10. when is the ballon exactly 980 m above the ground?
*February 20, 2014*

**Math**

A killer whale has eaten 75 pounds of fish today. It needs to eat at least 140 pounds of fish each day. A bucket holds 15 pounds of fish. Write and solve an inequality that represents how many more buckets of fish the whale needs to eat?
*February 20, 2014*

**Chemistry URGENT**

Please show how N and O are combined to make NO^+2 in Lewis dot structure. I'm having a hard time. Thanks
*February 19, 2014*

**Chemistry**

three separate questions 1. An empty graduated cylinder weighs 82.450 g. When filled to 50.0 mL, with an unknown liquid it weighs 110.810 g. What is the density of the unknown liquid? 2. It is valuable to know that 1 milliliter (mL) equals 1 cubic centimeter (cm^3) or cc.). ...
*February 11, 2014*

**Economics**

It takes a phlebotomist 15 minutes to complete a blood draw. The supplies for each draw cost $4, and the phlebotomist earns $20 per hour. The phlebotomy lab is designed to accommodate 20,000 draws per year. What are the average and incremental costs of a blood draw when the ...
*February 10, 2014*

**statistics**

Provide the Z score and the critical value. Raw score of 112, population mean 89, Std. of the population (22.8)
*February 10, 2014*

**statistics**

The test scores of students in a class test have a mean of 65 and with a standard deviation of 8. What is the probable percentage of students scored more than 70?
*February 10, 2014*

**chemistry**

In which of the following pairs of compounds are both members of the pair ionic compounds? Explain a. Pl3 and HBr b. H2S and NCl3 c. LiF and H20 d. LiI and NiO DrBob222 you said you would choose the answer d and I should know how to figure this out. I don't understand the ...
*February 9, 2014*

**chemistry**

the correct formula for the ionic compound containing Tl^3+ and Te^2- ions would be: a. TlTe b. Tl3Te2 c. Tl2Te3 d. Tl2Te
*February 9, 2014*

**Chemistry**

6 separate questions. I have figured out the other 20 questions I am stuck. Please help Thanks The correct name for the ionic compound Al2Se3 is? The correct name for the ionic compound Fe2Se3 is? the Roman numerall III in the name Iron(III)oxice indicates what? Which of the ...
*February 9, 2014*

**chemistry**

In which of the following pairs of compounds are both members of the pair ionic compounds? Explain a. Pl3 and HBr b. H2S and NCl3 c. LiF and H20 d. LiI and NiO
*February 9, 2014*

**chemistry**

the correct formula for the ionic compound containing Tl^3+ and Te^2- ions would be: Please show. thank you
*February 9, 2014*

**Healthcare Economics**

Your president bought two acres of land for $200,000 ten years ago. Although it is zoned for commercial use, it currently houses eight small, single-family houses. A property management fir that wants to continue leasing the eight houses has offered you $400,000 for the ...
*February 8, 2014*

**math**

a train leave Chicago at a 115 miles per hour towards Denver another train leaves Denver 105 miles per hour towards Chicago if the distance between the two cities is 1200 miles how long would it take before the two trains meet?
*February 7, 2014*

**algebraic expressions**

What is the algebraic expression for the following word phrase the product of 2 and y
*February 6, 2014*

**calculus**

If limit as delta x approaches 0 of tan(0+Δx)-tan(0)/Δx =1 which of the following is false: d/dx [tanx]=1 the slope of y = tan(x) at x = 0 is 1 y = tan(x) is continuous at x = 0 y = tan(x) is differentiable at x = 0
*February 6, 2014*

**calculus**

Suppose h(x) = f (g(x)) and the graphs of f and g are shown below. Describe the continuity of h at x = 0. how would you do this if you were given two graphs: F--- discontinuity at -2,0; point at -1,1; and point at 0,0 (to make a parabola) then discontinuity at 0,-1; and then ...
*February 6, 2014*

**clalc**

and the answer options are h is continuous at x = 0. h is discontinuous at x = 0 since h(0) is undefined. h is discontinuous at x = 0 since the limit of h(x) as x approaches 0 does not exist h is discontinuous at x = 0 since the limit of h(x) as x approaches 0 does not equal 0
*February 6, 2014*

**clalc**

Suppose h(x) = f (g(x)) and the graphs of f and g are shown below. Describe the continuity of h at x = 0. how would you do this if you were given two graphs: F--- discontinuity at -2,0; point at -1,1; and point at 0,0 (to make a parabola) then discontinuity at 0,-1; and then ...
*February 6, 2014*

**calculus**

Which of the following best describes the limit as x approaches 4 of the quotient of 2 times x divided by the quantity negative 2 plus square root of x ? It exists and equals 4 It fails to exist because it is unbounded. It fails to exist because its one-sided limits are not ...
*February 5, 2014*

**chemistry**

6 part question 1. describe the appearance of a Bunsen flame that is getting insufficient air? 2. describe the appearance of a Bunsen flame that is getting too much air. 3. When inserting glass tubing into a rubber stopper, how far from the stopper should you hold the tubing? ...
*February 5, 2014*

**chemistry**

Two naturally occurring isotopes exist for the hypothetical element dippium. 25.0 percent of dippium atoms have a relative mass of 17.0 amu and 75.0 percent a relative mass of 21.3 amu. What is the atomic mass of dippium? Please show the work thanks
*February 4, 2014*

**Physics **

An airplane moves away from a stationary observer at 125 m/s and emits a frequency of 595 Hz on a day where the temperature is 25.0°C. What frequency does the observer hear?
*February 3, 2014*

**CHEMISTRY**

The grams of protein in 1 cup of soup that has 110 Cal{\rm Cal} with 7 g{\rm g} of fat and 9 g{\rm g} of carbohydrate. Express your answer using one significant figure.
*February 1, 2014*

**math**

1563.75
*January 30, 2014*

**Science**

A 15.3 kg object is dropped from an initial height of 33.5m above the ground. Find the speed when it hits the ground.
*January 28, 2014*