Thursday
November 27, 2014

Posts by anonymous


Total # Posts: 74,659

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

Math, Please Help! I don't understand!
The questions are asking you to rearrange the equations for a given variable. remember, what you do to one side, you have to do to the other. so x/a - 1 = y/b for x add 1 to each side x/a = y/b + 1 now multiply by a x= ay/b + a
November 4, 2014

Science Question
24
November 4, 2014

english 4
Instructions within procedural texts should be phrased as ­­­­__
November 4, 2014

calculus
A manufacturer of hospital supplies has a uniform annual demand for 80,000 boxes of bandages. It costs $10 to store one box of bandages for one year and $160 to set up the plant for prduction. Haw many times a year should the company produce boxes of bandages in order to ...
November 4, 2014

physics
Suppose a bimetallic strip is constructed of copper and steel strips of thickness 1.33 mm and length 23.5 mm, and the temperature of the strip is reduced by 4.50 K. If the strip is 23.5 mm long, how far is the maximum deviation of the strip from the straight orientation?
November 4, 2014

Calculus please help me
actually i solved my vertical asymptote it's -5 and 5. but how will i find the concave up and inflection point
November 4, 2014

Calculus please help me
f(x) = \frac{ x^3 }{ x^2 - 25 } defined on the interval [ -18, 18 ]. Enter points, such as inflection points in ascending order, i.e. smallest x values first. Enter intervals in ascending order also. The function f(x) has vertical asympototes at (? )and (?) . f(x) is concave ...
November 4, 2014

physics
a50g ball is hit to roll by a force of 100N.it rolls over 20m.what was its initial speed
November 4, 2014

geometry
a rectangular piece of land measures 0.7 km by 0.5km each side is to be fenced with 4rows of wires.What is the length of wire needed?
November 4, 2014

Calculus
Given f(2)=5, f'(2)=-1 find the value of d/dx[1/sqrt(f(2x))] when x=1
November 4, 2014

Calculus
1. On what interval is the function f(x)=x^3-4x^2+5x concave upward? 2. For what values of x dies the graph of f(x)=2x^3-3x^2-6x+87 have a horizontal tangent? Is there no solution because the equation can't be factored? 3. At what point on the curve y=1+2e^x - 3x is the ...
November 4, 2014

science
I posted the whole question again. Hg2+and SCN-=HgSCN+ =logarithim for the reaction is 9.64 = 10^9.64= 4.3*10^9 Ksp HG2(SCN)2= 3.0*10^-20 I have reactions Hgscn2> hg2+2SCN Hg2+ + SCN->Hgscn cations= anions 2[hg2+]+[Hgscn]=[Scn-] Mass balance [hgscn+]+[Hg2+]=[HGscn+]+[Scn-]
November 4, 2014

SS
Similar to how the American Congress is divided into the Senate and HOR, how is the Canadian Parliament divided?
November 3, 2014

Calculus
Two lovers have a spat and swear they will never see each other again. The girl walks due south at 6 mph while the boy walks at 10 mph on a heading of North 60 degrees West. How fast is the distance between them changing 30 minutes later?
November 3, 2014

physics 1403
10kg mass is attached to a 5kg mass by a 20cm cord. The 5 kg mass is attached by a 30cm cord to a motor that rotates the entire mass/cord system 5rev/s in the horizontal plane. What is the tension in each cord?
November 3, 2014

SS
What are some of the roles of the Canadian prime minister (military, laws, etc)?
November 3, 2014

math
what is the fastest unit rate of 1 mile ?
November 3, 2014

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