Sunday

December 21, 2014

December 21, 2014

Total # Posts: 75,758

**SS**

What are some features of Canadian culture that are different from American culture?
*November 6, 2014*

**matg**

jhb
*November 6, 2014*

**matg**

Cobalt-60 has a half-life of about 5 years. How many grams of a 300 g sample will remain after 20 years? (Points : 1)
*November 6, 2014*

**science**

my booty usatestprep
*November 6, 2014*

**science**

can someone please help
*November 6, 2014*

**science**

brain central nervous system human being nerve tissue neurons Organize the parts of this body system in the CORRECT order according to the levels of organization in a multicellular organism, simplest to most complex..
*November 6, 2014*

**geometry**

Jake needs 9 pieces of rope that are each the same length. He cuts the pieces from a rope that is 8 yards long and uses up the whole piece of rope. How long is each piece of rope?
*November 6, 2014*

**wj keenan**

both insulators and conductors can be charged by?
*November 6, 2014*

**physics**

A motorist has to travel 3.50 km in a city with an average speed not exceeding to 25 km/h . If the average speed increases to 40 km/h. What is time he will gain from his journey
*November 6, 2014*

**physics**

A motorist has to travel 3.50 km in a city with an average speed not exceeding 25 km/h. If the average speed increases to 40 km/h, fine the time he will gain in his journey
*November 6, 2014*

**physics**

A motorist has to travel 3.50 km in a city with an average speed not exceeding 25 km/h. If the average speed increases to 40 km/h, find the time he will gain in his journey.
*November 6, 2014*

**algebra**

A repairman purchased several furnace-blower motors for a total cost of $150. If his cost per motor had been $5 less, he could have purchased 1 additional motor. How many motors did he buy at the regular rate?
*November 6, 2014*

**algebra**

A bookstore can purchase several calculators for a total cost of $350. If each calculator cost $2 less, the bookstore could purchase 20 additional calculators at the same total cost. How many calculators can be purchased at the regular price?
*November 6, 2014*

**algebra**

The sum of a number and its reciprocal is 29/10 Find the numbers?
*November 6, 2014*

**STATISTICS**

Suppose that, in order to estimate the proportion of students who wear glasses, a sample of 100 students was collected and showed that 20 of the students in the sample wore glasses. A confidence interval for the population proportion of students who wear glasses is given by: ....
*November 6, 2014*

**math**

A sludge pool is filled by two inlet pipes. One pipe can fill the pool in 14 days and the other pipe can fill it in 22 days. However, if no sewage is added, waste removal will empty the pool in 35 days. How long will it take the two inlet pipes to fill an empty pool? answer
*November 5, 2014*

**statistics**

Suppose that the ages of students at a particular university average 26 years with a standard deviation of 2.8 years. Consider the sampling distribution of the sample mean age of students in a sample of n = 49. The standard deviation of the sampling distribution is
*November 5, 2014*

**Trig**

But this section is on tan only and the answer is 24.
*November 5, 2014*

**Trig**

A playground slide starts 107cm above the ground and is 250cm long. What angle does the slide make with the ground? Give the answer to the nearest degree.
*November 5, 2014*

**Science**

Effects of insecticide on aquatic animals?
*November 5, 2014*

**Math **

i am thinking a number the number in the tens is less than the number in ones.
*November 5, 2014*

**English**

What could the main idea of Through The Tunnel be, in a sentence?
*November 5, 2014*

**Math**

ten trees in three minutes, is the same as twenty threes in six minutes, is the same as 200 trees in 60 min or one hour. time=2500/rate=2500/(200/hr)= 12.5 hrs
*November 5, 2014*

**Statistics**

D) since this is average question with given sample size, you need to use (mean, sigma/root sample size). This is normal distribution, so you don't need to worry about sample size being greater than 30. Therefore, you should do = mean - 2 (0.31/squre root 22) and mean + 2(...
*November 5, 2014*

**ingles**

homework:unscramble the words on writing division exampie(the family,mother)
*November 5, 2014*

**physics**

Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, as shown. The acceleration of gravity is 9.8 m/s Block 1 has a mass of 5 kg while block two has a mass of 8 kg. A string is tied to the 8 kg block pulling up ...
*November 5, 2014*

**Math**

Chris has a square garden with an area of 38.4 m squared. He decreases the length of each side by 1.7 m to make a smaller garden. What is the perimeter of the smaller garden. {Hint find the length of each side of the bigger garden first, then decrease the length, then find the...
*November 5, 2014*

**math**

what is equal to 3.7
*November 5, 2014*

**Math**

Whats 9+10?
*November 5, 2014*

**Math**

You stupid!
*November 5, 2014*

**science**

i just dont know any similarity between those two resource
*November 5, 2014*

**science**

renewable is energy source that can be used again inexhaustible is energy source that cant be used up by humans
*November 5, 2014*

**science**

what is the similarity of renewable and inexhaustible resource?
*November 5, 2014*

**physics**

ill be happy to check your answer
*November 5, 2014*

**math**

but none of the answers are close to 450 so which one should i choose
*November 5, 2014*

**math**

an average sized dog weighs about A. 15 grams B. 50 grams C. 5,000 grams D. 15,00 grams I don't know the answer, please help
*November 5, 2014*

**Science -- Ms. Sue, please help?**

Thank you so much!
*November 5, 2014*

**Science -- Ms. Sue, please help?**

(Corrected!) 14. producer 15. abiotic 16. nitrogen-fixing 17. heat 18. evaporation 19. consumer 20. nitrogen 21. savanna 22. Not quite sure yet.
*November 5, 2014*

**Science -- Ms. Sue, please help?**

14. The energy role of the first organism in a food chain is always a(n) ___________. 15.Water is a(n) __________ factor in all ecosystems that all living things require. 16.___________bacteria carry out the conversion of gaseous nitrogen to a biologically useful form of ...
*November 5, 2014*

**Math**

A rectangle is to have a perimeter of 18m. the graph below shows the relationship between the area of the rectangle and its width. What is the width of the rectangle with the largest area?
*November 5, 2014*

**English**

I have to create a piece of descriptive writing about a good day at a beach, but I am unsure on how to describe the atmosphere of the beach. Please help! Here is what I have so far: It's the morning of somerset beach. Seagulls haver over waiting for food, ...
*November 5, 2014*

**algebra**

What is the maximum velocity of a roller coaster when the height is 203 feet. Can the problem be solved by factoring the following equation? t^2 -2t-11=0?
*November 5, 2014*

**Algebra**

The formula v=8square root of h gives the relationship between velocity, v (in feet per second and height, h (in feet). What is the maximum velocity of a roller coaster that is 203 feet high? Can the question be solved using the equation t^2-2t-11=0?
*November 5, 2014*

**psychology**

Infants generally sit up without support at a.9 months b.3 months c.6 months d.birth
*November 5, 2014*

**Chemistry**

Cs(s)+H2O(l)→ ? i thought it was H2+CsOH but the computer says that's wrong.
*November 5, 2014*

**physics**

A staging that weighs Wstaging supports a painter weighing 350 N. The reading on the left scale is 600 N and the reading on the right scale is 240 N. What is the weight of the staging?
*November 5, 2014*

**Thermodynamics**

12 kg of water in an insulated container is at 30 C. Initially, only 18 percent of the water is in the liquid phase. An electric heater, connected to a 120-V source and 9 A, is used to heat the system. Determine the time required to vaporize the entire water. Express your ...
*November 5, 2014*

**Finance**

If you open an IRA at a commercial bank and deposit $1000 in the account per year, how much will be in the account after 20 years if the funds earn 7%?
*November 5, 2014*

**Science**

brain central nervous system human being nerve tissue neurons Organize the parts of this body system in the CORRECT order according to the levels of organization in a multicellular organism, simplest to most complex..
*November 5, 2014*

**physics**

It has been said that sometimes lead bullets melt upon impact. Assume that a bullet with an initial temperature of 301 K receives 73.9 % of the work done on it by a wall on impact as an increase in internal energy. (The melting point of lead is 601 K, the heat of fusion for ...
*November 5, 2014*

**physics**

A cryogenic storage container holds liquid helium, which boils at 4.20 K. Suppose a student painted the outer shell of the container black, turning it into a pseudo-blackbody, and that the shell has an effective area of 0.791 m2 and is at 2.95·102 K. What is the rate at...
*November 5, 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 5, 2014*

**physics**

A copper sheet of thickness 2.13 mm is bonded to a steel sheet of thickness 1.41 mm. The outside surface of the copper sheet is held at a temperature of 100.0°C and the steel sheet at 24.3°C. a) Determine the temperature (in °C) of the copper-steel interface. b) ...
*November 5, 2014*

**Grammer.Usage. and Micanics**

plp[-ji76udrt5e54y67es
*November 5, 2014*

**Chemistry please help **

A 1.516 M soltion is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.
*November 5, 2014*

**physics**

A truck moves with a constant acceleration and covers a distance between two points 180 apart in 10 seconds. The velocity as it passes the second point is 30 m/s. Whats the acceleration of the truck ? whats the velocity in the first point ?
*November 5, 2014*

**physics**

the speed of a train is reduced uniformly from 10 m/s to 5 m/s while covering a distance of 150 m. What is the acceleration of the train? how much farther will it travel before coming to rest, assuming the same acceleration ?
*November 5, 2014*

**arithmetic**

if the internal diameter of a cylindrical iron piep is 2.8 cm . If the pipe is melted uniformly by 1 mm then it formed a cylindrical rod ,find the diameter of the new rod?
*November 5, 2014*

**Calculus I**

Any help on how to solve this? The range of a projectile launched at an angle θ from the ground with velocity v0 is given by R(θ) = [v0^2 sin 2(θ)]/9.81 . If the projectile is launched at an angle of θ = π/6, use differentials to approximate the ...
*November 5, 2014*

**English**

Which of the following sentences both a direct and indirect object? A. My psychology professor has written several books. B.My pyschology prefessor is one of the best lecturers on campus. c.my psychology professor requires his students to quite a bit outside reading. d. My ...
*November 5, 2014*

**Calculus- Please Help!**

Very confused with this question. Amy help would be appreciated. The ideal gas law states that P V = nRT where P is the pressure in atmospheres, V is the volume in litres, n is the number of moles, R = 0.082 L·atm/K·mol is the gas constant, and T is the ...
*November 4, 2014*

**Calculus**

Draw a diagram to show that there are two tangent lines to the parabola y=x^2 that pass through the point (0,-4). Find the coordinates of the points where these tangent lines intersect the parabola. So far I have taken the derivative and got y'=2x.. Using point slope form ...
*November 4, 2014*

**English**

Sorry wrote it wrong. that Bacon really wrote the plays is dependent and They insist is independent
*November 4, 2014*

**English**

They insist that I like to read. I do see the verbs. Should have seen them. I am saying no comma and that I like to read is the Dependent clause. Thank You for making us think about it.
*November 4, 2014*

**English**

They insist that Bacon really wrote the play. I am saying this is a complete sentence with no dependent clause,. Am I right?
*November 4, 2014*

**Math**

What is the divisor of 12/18 and 4/6
*November 4, 2014*

**Calculus**

Show that the curve y=6x^3+5x-3 has no tangent line with slope 4. The answer key says that m=y'=18x^2+5, but x^2 is greater than or equal to 0 for all x, so m is greater than or equal to 5 for all x. I don't understand that x^2 is greater than or equal to zero. Where ...
*November 4, 2014*

**Calculus**

2. For what values of x dies the graph of f(x)=2x^3-3x^2-6x+87 have a horizontal tangent? My answer: (1.6,77.9) (-0.62, 89.1)
*November 4, 2014*

**Calculus**

1. On what interval is the function f(x)=x^3-4x^2+5x concave upward? My answer: (4/3, infinity) ?????
*November 4, 2014*

**Math**

Write the equation of 8 x 1/4 = 8/4 = 2
*November 4, 2014*

**Math**

8 x 1/4
*November 4, 2014*

**Math**

8x1/4=
*November 4, 2014*

**English**

Does a comma go after an independent clause with a subordinate conjunction followed by another independent clause? Example The classes will be held unless the schedule has been changed. I know one is needed if a dependent clause is first.
*November 4, 2014*

**Math**

What is the multiplier of 3/4 and 6/8
*November 4, 2014*

**5th grade math**

a company shows profits of $78020 the company wants to divide one quarter of the profits evenly among 47 emplpoyees how much money will each employee receive? how do I divide $78020 by one quarter?
*November 4, 2014*

**English**

I know to use a comma when a sentence is introduced by a dependent (subordinate) clause. Is a comma needed with two independent (subordinate) clause Example--The classes will be held unless the schedule has been changed. Or is, unless the schedule has been changed-----is a ...
*November 4, 2014*

**English**

If it rains we shall postpone the picnic. If it rains is a dependent clause we shall postpone the picnic is independent. I say to put comma between rains and we, Correct?
*November 4, 2014*

**Math **

1/3 multiply 300
*November 4, 2014*

**Chem31**

Using the systematic method and information in the Appendices F and J (note that log value is given in Appendix J), determine [SCN-], [Hg2+], and [HgSCN+] at equilibrium when Hg(SCN)2(s) is dissolved in water. Be sure to show all steps using the systematic method. Neglect ...
*November 4, 2014*

**geometry**

If you are standing 22 feet straight from a tree and you look at the top of the tree with a distance of 33 feet how tall would the tree be?
*November 4, 2014*

**Chemistry**

7809
*November 4, 2014*

**Math **

300 kilometers, 180 kilometers and 200 kilometers represents the trips that ms axler took in her job this week. How many kilometers had ms axler traveled when she was at the one third point in each trip? Explain your reasoning
*November 4, 2014*

**stats**

A research firm conducted a survey to determine the mean amount people spend at a popular coffee shop during a week. They found the amounts spent per week followed a normal distribution, with a population standard deviation of $4. A sample of 49 customers revealed that the ...
*November 4, 2014*

**Math**

Brett and Jim sign up for Memorial Day race in their town. There are two different events, a 5 kilometers and a 10 kilometers. Brett signed for 5 kilometers and Jim signed for 10 kilometers. Use thermometers to indicate when both Brett and Jim have finished 3/5 of their races...
*November 4, 2014*

**math**

If there are 15 minivans out of 42 cars how many minivans are there in 150 cars
*November 4, 2014*

**English**

If he had not worked hard, he would never have become a success. Looking for dependent clauses To me these both song dependent that they both need the other. Am I wrong?
*November 4, 2014*

**Chemistry **

A 1.516 M solution is made by dissolving 1.570 g of the compound in 0.2238 mol of water. Determine the molar mass and apparent molecular formula of the compound.
*November 4, 2014*

**MGMT**

How might a manager use leading by example to help develop ethical behavior in his or her unit?
*November 4, 2014*

**math**

Rosie had a necklace 2/3 beads were red, 14/21 beads wet blue how many are white is the and 3/21
*November 4, 2014*

**Statistics**

(a)You use the squareroot of 2 since there 2 Canadians P(X<1.65)=P[Z<(1.65-1.86)/(0.29/√2) Your answer should be P(Z<-0.98), You would then look at the Standard Normal probabilities table, which should give you, 0.1660. b) would be the same formula but you would...
*November 4, 2014*

**English**

Seeing snow on the street in the middle of April was odd. on the street--Prepositional phrase in the middle of April ----a prepositional phrase or is the latter 2 prepositional phrases?
*November 4, 2014*

**english 10**

Prompt A: compare and contrast the topics and themes of writers from the america and european writers. Promt B: Think about all the selections you've read thus far by european writers. examine one element that the selection have in common, not including the fact that they...
*November 4, 2014*

**English**

Another I am not quite sure of. Never swim alone at night. I know never is an adverb modifying swim. I think alone is an adverb also. Would it modify swim too?
*November 4, 2014*

**English**

Do not take too many chances when you drive at night. I know too is an adverb modifying many an adjective I know when is an adverb. Does it modify drive?
*November 4, 2014*

**English**

? So Both at the beginning of sentence is also a pronoun Both of the girls
*November 4, 2014*

**English**

Both of the girls insisted that they try to reach the end of the trail by themselves. I know they and themselves are pronouns. I know both can be used as a pronoun, but I am thinking no here. Am I right?
*November 4, 2014*

**Math**

Brett and Jim sign up to run in memorial day race.there are two different events in the race, a 5 kilometers and a 10 kilometers. Brett signed up for 5 kilometers and Jim signed for 10 kilometers. Use thermometers to indicate when both Brett and Jim finished3/5 of their races...
*November 4, 2014*

**English**

Well, suppose I say, "How nice it is?" Would that sentence be termed as grammatically incorrect?
*November 4, 2014*

**English**

Thanks! Is the exclamation mark added even when considering only grammar and not emotions?
*November 4, 2014*

**English**

To be grammatically correct, should the following sentence end with an exclamation or question mark? How nice it is !/?
*November 4, 2014*

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