Monday
January 23, 2017

Posts by anonymous

Total # Posts: 104,209

Math
AB ☍ CD
January 9, 2017

Physics
mgH=mv²/2 v=sqrt(2gH) F=?p/?t= ?(mv)/ ?t=m ?(v)/?t= =m[sqrt(2gH)-0]/?t= m[sqrt(2gH)]/ ?t
January 9, 2017

mosab bin omair
The answer is 0.038. Substituting into the equilibrium expression, you have K = (0.013*0.0001)/(0.000034)
January 9, 2017

Algebra - Solving Systems by Elmination
3x + 8y = -5 -2x + 2y = 18
January 9, 2017

math
Please help with this test, I was out of school for awhile due to my dad passing away from heart and kidney failure. I'm trying to catch up on missing work and get good grades to make my mom happy and every time I ask my teachers for help with this test they really don'...
January 9, 2017

Social Studies Abolitionism Quiz
Who was the publisher of The Liberator?
January 9, 2017

Social Studies Abolitionism Quiz
Based on this early illustration of the town, what is one reason why Francis Lowell's partners might have chosen this area to build the factory town of Lowell?
January 9, 2017

CHEMISTRY URGENT
1. You have been given a sample of unknown molarity. Calculate the molarity of a solution which has been prepared by dissolving 8.75 moles of sodium chloride in enough water to produce a solution of 6.22l. 2. You have a sample which consists of 428g sodium hydroxide (NaOH) ...
January 9, 2017

math
Uncle Bill is 6 times as old as John and he will be 4 times as old as John in 4 years' time. If Uncle Bill is less than 60 years of age, how old will he be in 6 years' time? Please show working out as well, thanks.
January 9, 2017

math
A 2m wide path is built around a 20m square swimming pool. The distance around the outside of the path will be: A) 96m B) 48m C) 92m D) 56m Also, please explain how you got the answer, thanks.
January 9, 2017

math
Oh, ok, thanks.
January 9, 2017

math
Lee bought 8 T-shirts for $2.32 each and sold them for $5.18 each. How much money did she make?
January 9, 2017

Math
Which pair of ratios does not form a true proportion? A 8:14–20:35 B 6 to 10 and 15 to 25 C 9/5 equals 27/15 D 12:15 and 30:50
January 8, 2017

physics
oh! ok thanks
January 8, 2017

physics
But that doesn't make sense because an apple can't make the earth move, even a little.
January 8, 2017

physics
when an apple falls from a tree, and strikes the ground without bouncing, what happens to its momentum?
January 8, 2017

Science
Wolves: Moose: 6 10 3.Calculate the average of moose killed by one wolf in each territory. So, would I divide the number of moose by wolves, or wolves by moose?
January 8, 2017

math
A scientist observes two colonies of bacteria. The first grows at a rate of 2.2 x 10^6 bacteria per hour. The other grows at a rate of 6.3 x 10^5 bacteria per hour. Which grows faster? How do you know?
January 8, 2017

Math
At one afterschool event, of the students were 8th graders and the rest were 7th graders. Of the students who were in 7th grade, the ratio of boys to girls was 3:5. What percent of all the students at the afterschool event were boys who are in the 7th grade? Help plz
January 8, 2017

physics
when temperature increases from t to # t and the moment of inertia is increase from I to #I. the coefficent of linear expansion is alpha .THE RATIO OF #I\I IS
January 8, 2017

Maths
PQRS is a rectangle, whose diagnols PR =2x + QS=3x+1.Find the value of x
January 8, 2017

Account _trial bal
Goods return from debtors come in which account debit or credit
January 8, 2017

English
Help me write a hyperbole poem
January 7, 2017

Physical science
What was Jack's speed from 5 sec to 10 sec
January 7, 2017

math
With 300 dollars one will have to buy total 30 items. If price of a exercise book is 30 dollars, price of pen is 24 dollars and price of a pencil is 6 dollars, and if that person is bound to buy at least one of each item, how many exercise books, how many pens and how many ...
January 7, 2017

stiochemetry
what mass of silver nitrate is needed to prepare 100cm3 of silver nitrate solution, concentration 0.2mol/dm3? the mass of one mole of silver nitrate is 170g
January 7, 2017

accounting
Revenue is traditionally recognized in the accounting records when A. cash is received. B. services are rendered. C. it’s incurred. D. None of the above
January 6, 2017

Math
Need to build a rectangular garden on an area of 8,000 sf. What are the dimensions?
January 6, 2017

Physics
Find the specific heat of an unknown metal given this data: Mass of the metal = 120 g Temp of the metal = 220 degrees Mass of the water = 30 g Initial Temp of the water = 20 degrees Final Temp of the water = 85.6 degrees Specific Heat of the water = 4.186 J/gram C I get 0.51 J...
January 6, 2017

American Government
For Q3, it might help to look up a graph for public debt over the years.
January 6, 2017

language arts
what do these lines most likely reveal about grandma sands?????!!!!! plese answer!!!!!!!!!
January 6, 2017

Math
One third of a number divided by itself gives 1/3. Find the number.
January 6, 2017

Stem
Calculate the pH of the solution resulting from the addition of 20.0 mL of 0.100 M NaOH to 30.0 mL of 0.100 M HNO3. (a) 1.35 (b) 1.70 (c) 1.95 (d) 2.52
January 6, 2017

Math
The average of third number is 29 if the average of two number is27 .find the third number ?
January 6, 2017

chemistry
Metal carbonates => Metal Oxides + Non-metal oxides Ammonium Carbonates => Ammonia (gas) + Water (gas) + Carbon Dioxide (gas)
January 5, 2017

Chemistry
Single Replacement Oxidation Reduction Rxn Zn(s) + 2HCl(aq) => ZnCl2(aq) + H2(g)
January 5, 2017

Chemistry
Without aluminum, zero moles. You also need to include molarity of sulfuric acid.
January 5, 2017

calculus
f'(-2) if F(x)=g(h(x))
January 5, 2017

Math
If a boy run at the rate of 10km/h then whow long will he take to cover a distance of 450 m
January 5, 2017

Math
I am a polygon. The sum of my angles equals 180. I have two sidesthat are congruent. What am I?
January 5, 2017

math
51 is the product of Rhonda's age and 3.
January 5, 2017

Math
One of the largest pumpkins ever grown weighted 4/5 ton. About how much did the pumpkin weight.
January 5, 2017

Math
One of the largest pumpkins ever grown weighted 4/5 ton. About how much did the pumpkin weight.
January 5, 2017

physics
Oh okay. Thank you very much bobpursley. I was forgetting so use sin and cos. I was trying to solve the problem just using numbers. Thank you for the help and helping me to see my mistake.
January 5, 2017

physics
Can someone please help me? I am having a really hard time with physics. This is not a test question. It is a practice problem from a review website I am supposed to use, but I am having a really hard time. Can someone at least help me to begin setting up the problem? I would ...
January 5, 2017

math
There are technically 2 different ways that you could go about solving this problem. The first option is definitely the easier way to solve this problem because it is completely visual - unless you prefer to solve things algebraically. The first way to solve this problem would...
January 5, 2017

math
The angle of elevation of the top of a building from a point 10m away in level ground is 30.calculate the height of the building
January 5, 2017

Career
South Africa, English first additional language is a subject and that level 3 is the level that I have obtain in English first additional language.
January 5, 2017

calculus
how do i get the answer for this limit limit x to 0 (4^2x-1) without using direct substitution my work so far is limit x to 0= (4^2x-1) = (4^2x/4^-1) is it correct?
January 5, 2017

Math
If frank earned in a simple interest for oneyear on an investment of 9000 .what annual rate of interest was paid
January 5, 2017

math
Consider a box that contains 14 red balls,12 blue balls and 9 yellow balls.A ball is drawn at random and the color is noted and then put back inside the box.Then,another ball is drawn at random.Find the probability? a.both are blue b.both balls are yellow c.the first is red ...
January 5, 2017

Chem
Oh I got C and H = to 2.71
January 4, 2017

Chem
Find the empirical formula of a compound found to contain 63.15 percent carbon 5.30 percent hydrogen and 31.55 percent oxygen I got C27H27O
January 4, 2017

social studies
If I were in Antarctica during the winter will it be warmer in summer
January 4, 2017

American Government
1. A, B, D, E 2. C 3. D
January 4, 2017

American Government
In our New England state we have for example Essex County. It contains the City of Gloucester and other cities as well as towns like Rockport, Manchester by the Sea, Hamilton.....
January 4, 2017

American Government
my answer to 3 would also have been A
January 4, 2017

American Government
cities have mayors, counties do not
January 4, 2017

Physics
velocity ratio of 5 implies a distance ratio of 5 5 * 0.40 m = 2 m work done by arms = 60*2 = 120 Joules work done by lift on mass = 25*9.81*0.20 = 49.05 Joules loss in energy = 120 - 49 = 71 Joules
January 4, 2017

mathematics
Solve the equation: 4x squared-24=16x,4x-12(12raise to the power of x)+32=0
January 4, 2017

mathematics
To what value does the sum 20+12+36/5 tend as n.I really don't have any idea.
January 4, 2017

am I right ? or no?
i am not correct
January 4, 2017

am I right ? or no?
try it on your calculator :)
January 4, 2017

am I right ? or no?
.99999....^t ---> smaller and smaller 1.000001^t ---> bigger and bigger
January 4, 2017

Health
I'm not telling youuuuuu
January 4, 2017

Health
i know them but.
January 4, 2017

Health
1. D 2. A 3. A I stil don't know the rest! HELP MEEEEEEEEE
January 4, 2017

Maths
If a wire is bent into a square ,it's ara is 49cm2. If it is bent into a semi -circle , what will be its radius
January 4, 2017

Math
I bought three times as many erasers as pens and spent $155 in total. I spent $65 more on the pens than the erasers. Given that 's pen cost $1.90 more than an eraser, find the cost of a pen.
January 4, 2017

Algebra
23 is subtracted from 4 times of a number the result is equal to 1/3 of 54.Find the number?
January 4, 2017

physics
A small tiny nail may Pierce an inflated Tyre and remain there without pressure reduction.explain
January 4, 2017

physics
zero If there is no motion, no work is done.
January 4, 2017

Math;);)
please guys I need help I am stuck on this problem
January 4, 2017

Math;);)
Show that there are at least two ways to calculate the angle formed by the vectors [cos 19, sin 19] and [cos 54, sin 54].
January 4, 2017

Physics, math, algebra
How long will it take a sled to reach the bottom of a hill, if it accelerates at 5.60m/s^2 and has a final velocity at the bottom of the hill of 42.3km/h?
January 3, 2017

Math
Write a division equation that has a solution of -9/14
January 3, 2017

Physics11 A
No I haven't yet. How far along are you on it?
January 3, 2017

Physics11 A
Hi, I'm in the same physics class as well and need help with it too. I'm lined up to get help from a tutor. Did you complete it yet?
January 3, 2017

Physics11 A
I am not asking for answers. I am asking for help on my school work, which is exactly what this website is for. It's alright if you can't help me though. Thanks for the concern anyhow!
January 3, 2017

Physics11 A
CA students help! Did anyone do the Conservation of Mechanical Energy Lab in Unit 3 Lesson 3? I am very confused on what to do or how I would write a report on it. Please help!
January 3, 2017

Math
Asked to simplify the expression sin(180−è), Rory volunteered the following solution: sin(180−è) = sin 180âˆâ...
January 3, 2017

biology
Nvm I see you put where it says one point lol
January 3, 2017

biology
Did you get all of these right?
January 3, 2017

biology
1. The table in Figure 12-3 showes the results of measuring the percentages of the four bases in the DNA of several different organisms. Some of the values are missing from the table. Based on Chargaff's rule, the percentages of guanine bases in chicken DNA should be ...
January 3, 2017

math
Okay thank you!! the signs confused me
January 3, 2017

math
7x-3x = 4x
January 3, 2017

math
How did you get 4x
January 3, 2017

math
7x-4-3x=2x+10
January 3, 2017

math
dont know mate
January 3, 2017

Math
why 573.7
January 3, 2017

Math
Two stores carry a similar stereo for the same original price of $573. One store offers a 16% discount and the second store sells the stereo for $458.40. Which store gives the bigger percent discount? Justify your answer.
January 3, 2017

Math
Alright Ms. Sue chill out- no need to be calling anyone names here. Thought you were all about being a positive influence to people? There is a nice way to talk to people and encourage them to find the answers on their own, and that's not it. She's a 6th grader, and ...
January 3, 2017

Physics
when tuning a piano, amusician plays a note that should be at 110Hz while at the same time tapping a 110Hz tuning fork and holding it next to the strings. He hears beats at 4Hz. (A) state and explain what frequencies the piano could be producing (b) explain how the musician ...
January 3, 2017

Math
The difference between two whole numbers is 15. One of the numbers is 1. There are two possibilites for the second number. What are they?
January 3, 2017

Science
Depletion of what has been halted by a ban on the manufacturing of what
January 3, 2017

English 6th
Dissection sentences according to part of speech
January 3, 2017

Math
f(x)=(1+x)/(1-x),g(x)=x/(1-x), find the simplest form of f[g(x)] and state the domain. My work: (1+ (x/(1-x)))/(1-(x/(1-x))) (1+x)/(1-x)/(1-x)/(1-x)
January 3, 2017

math coordinate geometry
Find the 3rd vertex of a triangle ABC.If 2vertices are A(-4,3),B(4,3)and its centroid is at orFind. Find 3rd.
January 3, 2017

Math
B and 19-B B+2 = 2(19-B) B+2 = 38 - 2 B 3 B =36 B = 12 then 19-B = 7
January 3, 2017

math
the difference between two whole number is 26 and one number is three times the other then the smaller number is..........my work x-y=26,3x_y=26
January 2, 2017

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