Posts by Jack

Total # Posts: 1,787

Math
Actually, rounding to the nearest whole number is incorrect. For example, 24 4/7 rounds up to 25, not the best number to divide by 4 to get your estimate. What you need to do is to find the nearest number (up or down) that is compatible with 4. So in this case, 24 4/7 would ...

Maths
The scale of a map is 1:500. Find the length of a road in real life if it is 6cm long on the map

Language arts
based on the text preview as well as research about the background of the novel and the author's life a reader can predict that the novel will most likely be about Deez nuts HA GOT EM

Social studies
Hey ms. sue . I went to the link that you put in here but I didn't see what I was looking for? could you pls help me>

Math
I need help please. Assume that one dollor is equal to 1.14 euros. If 500 g of an item is selling for 25 euros, what is its price in dollars per kg?

Algebra
write equation of given translation of y=|x| 1 unit down 5 units right 10 units left 4 units up 6 units left

Math -Algebra
write equation of given translation of y=|x| 1 unit down 5 units 10 units left 4 units up 6 units left

MATHS HELP URGENT(TIME AND WORK)
A can do a piece of work in 12 days whereas B can destroy the work in 3 days. A does the work for 10 days and then B destroys the work up to 2 days. In how many days will the work be finished?

math
You need 4 more ounces

Algebra 2 (Math)
Divide 3x^3 + 3x^2 + 2x – 2 by x + 3 using long division. Check my answer please. 3x^2 – 6x + 20 3x^2 + 12x – 16 3x^2 + 12x – 16, R 58 3x^2 – 6x + 20, R -62 (I think that it's this one)

science
D. Firecrackers are converted to thermal energy when they burn.

Physics
You jump from a height of 1.0m from the surface of the Earth. The Earth will actually move a bit as you land. a.) Explain Why b.) Estimate the distance the Earth moves, listing any assumptions you make

social studies
K thank you

social studies
How did Muslim Turks influence turkey's development?

Chemistry
you have 5% formic acid solution and a 5% acetic acid solution. You titrate 5mL each with .1868M NaOH. A. Which will need more NaOH to reach the end point? B. How much more?

math
What is the expected value of the cost of of claims on a males drivers policy? Note: number of drivers is 9634 number of claims is 977 and the average cost per claim is 6108 euro

Physics
A small rock with mass m moves at velocity v0 and hits a rod of mass M as shown. The rod is initially at rest. The collision is completely inelastic. a) What is the angular velocity of the rod after the collision? b) What is the maximum angle the rod makes with the vertical?

Algebra II
How can you completely factor the following polynomial: 6x^5-51x^3-27x

chem
Calculate the equilibrium concentration of NH3,Cu^2+,[ Cu(NH3)]^2+ ,[Cu(NH3)2]^2+,[Cu(NH3)3]^2+,and[Cu(NH3)4]^2+ in a solution made by mixing 500.0 ml of 3.00 M NH3 with 500.0 ml of 2.00*10^-3 M Cu(NO3)2. The sequential equilibria are Cu^2+ +NH3---->[Cu(NH3)]^2+ ka1=1.86x10...

chem
Thanks!

chem
the following experiment was performed in the laboratory : an excess of solid SrCrO4 is vigorously shaken in water until a saturated solution is obtained. The excess solid is filtrated from the solution and 25.00 ml of the solution is titrated with 0.0115 M fe(no3)2 solution. ...

Physics
A block is on the end of a massless cable that is tied to a frictionless wheel (uniform disk) as shown in the figure at right. The wheel has a radius of 0.4 m. The system is initially at rest. If the block moves downward, with a constant acceleration, a distance of 2 m in 3 s...

Chemistry
You have a 250ml solution of 0.13M calcium iodate. How many grams of potassium iodate need to be added to the solution to begin to precipitate calcium iodate? The solubility product constant for calcium iodate is6.47 *10^-6. B) you have a 250ml solution of 0.13 M calcium ...

physics
How did you get three? .-.

physics
Upwards

physics
A stone is thrown from a height of 1.8 with a velocity of 29.4. How long does it take to reach its greatest height? I'm sure it has something to do with the s=ut+1/2 at squared not sure though

Marie Ernestine
Math/Science A car starts from rest and moves at the speed of 30 kph after half an hour. What is the cars acceleration?

science help ASAP
The answer for the first one is correct and the answer for the second one is D.

physics
Any ideas? A bird flying at 3m/'s west is given an acceleration of 1ms after five seconds what I'd it's velocity and how far has it travelled from its starting point?

physics
Got the answer it's basically 5-2/2.1=1.43s

physics
Relating to the first question. How long did it take to do this?

physics
Thanks. I understand it now. But we have like set formulas in our tables for incidence like v=u+at etc. I have learnt the changing velocity over time but in a test situation would I have to use the formulas given or the method appove?

physics
So basically I got this question and it's baffling. Over a distance of 5m the speed of a bicycle increase's from 2ms to 5ms what I's the magnitude of acceleration?

Social Studies
bro bro the 2nd one?

Social Studies
plz tell the second one Bihh

Social Studies
Yeah what is the second answer

Math
A boat pilot wishes to go in a straight line across a river from the east dock to the west dock in a ferryboat that has a still water speed 8.0 knots. If the river has a Southward current of 2.5 knots, what compass heading should be maintaned while crossing the river? What is ...

physics
20

math
189

kon
can someone edit my essay?

Rucker Blvd
It is 68

history
what event convinced south Carolina to spend representatives to the first continental congress ? A. passage of the currency act B. passage of the intolerable act C. passage of the navigation act D. passage of the stamp act is it D

calculus
find the first and second derivatives for 3x^4-4xy^2+7=2y

Algebra 1
A drama club wants to raise at least \$500 in ticket sales for its annual show. The members of the club sold 50 tickets at a special rate of \$5. The usual ticket price the day of the show is \$7.50. At least how many tickets do they need to sell the day of the show to meet the ...

Math
8arrangments

Social Studies
which of the tive themes includes the human and physical features at a specific location

Language Art
A B A C 100% thanks

Science
What is the total displacement of two trips one 10km north and the other 24km east

Social Stuides
Hm, do you have any ideas on what it inspired then Reed?

Social Stuides
I'm actually currently surprised I didn't think of that, good idea!

Social Stuides
Wow, thank you for the help! Now I should be able to finish up this project! :D

Social Stuides
That's actually pretty good! Thanks, but i'll also want something more then ang gaming system. I'm going to defintaly use this.

Social Stuides
What were some inventions that were inspired by the telephone? I've already got computer, please don't say another phone like the cell phone and smart phone. Thanks!

English

Physics
The slab of steel shown below is being lifted at 0.50 m/s. It weighs 1.91×103N. If the angle θ equals 61.4 degrees, what is the tension in each cable?

Finance
DBP Inc. just paid a dividend of \$2.50. The expected growth rate of dividend is 5 percent. The required return for investors in the first three years is 12 percent and 10 percent for the following three years. After those six years the required return is 8 percent. What is the...

Maths
A ladder of a length of 6m is placed against a wall. The distance from the foot of the ladder to the wall is 2.5m. How far up the wall is the ladder?

Chem
idk

algebra
Variables that must be excluded from 2y^2+7y-30/y+6

college algebra
192,031 / 3.2 = 1% of the population =60,009.6875 60,009.6875*100=total population =6,000,969 people in Indiana

Math
c

physics
A tennis player serves a tennis ball it is moving horizontally when it leaves the racquet. When the ball travels a horizontal distance of 12 meters, it has dropped 55cm from its original height when it left the racquet. What is the initial speed of the ball? (neglect air ...

physics
A tennis player serves a tennis ball it is moving horizontally when it leaves the racquet. When the ball travels a horizontal distance of 12 meters, it has dropped 55cm from its original height when it left the racquet. What is the initial speed of the ball?

Science
the answer is that it will float because of BOFA DEEZ NUTS AHHAHAHHAHAHAH GOT EM

Math
Insert parentheses to make this number sentence true 81+19\25=9

chemistry
A normal salt is formed when all the hydrogen atoms in acid have been replaced by a metal.Give equation

L.A

math
Yes

Algebra

ENGLISH
No It's 1. B 2. A 3. C 100% correct

physics
Using the following conversion factors, determine the number of milliliters in a volume of 2.37 fluid ounces: 1 gallon (gal) = 128 oz., 3.785 x 10-3 cubic meters (m3) = 1 gal, 1 mL = 10-6 m3. I got an answer 7.09ml, but it's incorrect, so confused how to covert those factors

math
Point C and point D are plotted on the graph. Plot points A and B to form rectangle ABDC with an area of 36 square units. Plot point E at (2, 4).

english
No i have to do a tale. I wont do that idea, because it wouldn't work. Thank you for your suggestions.

english
Thank you.. i wanted something to do more with the weather of summer, but i don't think it would work for a tale??

english
Taking a summer course and reading a novel

english
I need to create a tale, which the principal topic is summer. Im not sure what kind of tale i can write about summer

Chemistry
Also*

Chemistry
Always the answer would be .1, right?

Chemistry
Just trying to understand this, but is C always the basic number when doing problems like this?

Chemistry
If the electromagnetic radiation used to send television signals have a frequency of 3.0 * 10^9 Hz, what is its wavelength? I forget how to do a problem like this. Just taking a guess, is this somewhat a conversion equation?

Chemistry
How does the kinetic-molecular theory help explain the difference between solids, liquids, and gases? I don't know how to really answer this question because the theory only talks about gases, unless I am looking at the wrong one. I tried to look it up swell and all I got ...

Chemistry
When naming a molecular compound, such as CO, would I write it as mono carbon monoxide or carbon monoxide? My textbook has the rule written as prefix+1st element prefix+2nd element, but I am not sure if the mono applies to the carbon or not.

Chemistry
Other than what you stated, I feel as if I need something else to answer the first question, such as numbers to help back it up.

Chemistry
What data led to the development of the Law of Multiple Proportions? Give an example and explain why this law is important in chemistry. Would this be a good answer: John Dalton used the same observations he used for his law of definite proportions to help develop the law of ...

Chemistry Stoichiometry
Oh I see now. I read it as each step you had was just different equations that you combined, not as a series of steps. Thank you!

Chemistry Stoichiometry
I wasn't in class when my teacher taught me this, and she did not go over the material well, so how were you able to go from PV=nRT to M=dRT/P?

Chemistry Stoichiometry
The density of chloroform at a pressure of 220 mmHg and 25 degrees celsius is 1.42 g/L. Calculate the molar mass of chloroform. My set up is: mol*K .289 atm 1 1.42g/L ------------- ------------ ------ --------- .08206Latm 1 298K What I am unsure of is if this is the right way ...

Chemisty
How does the kinetic molecular theory help explain the difference between solids, liquids, and gases? Would the answer be basically stating how the theory states the difference of their atom structure? Or is it something else?

Does it even matter at this point? Schools almost over, and you may even have a choice to disappear from the teacher(s) by going to another school. In my opinion, this "Anonymous teacher poses no threat.

Language Arts
Its D C A A

Calculus
Let f : R --> R be an odd function. Explain why, for any positive number a, the integral from -a to a of f(x) = 0.

Chemistry
yes that's what he was asking, thank you!

Chemistry
Consider the combustion of ethane: 2C2H6(g)+7O2(g)-->4CO2(g)+6H2O(g) If the ethane is burning at the rate of 0.7 mol/L × s, at what rates are and being produced?

Chemistry
The thiosulfate ion (S2O32-) is oxidized by iodine as follows: 2S2O32-(aq) + I2(aq) → S4O62-(aq) + 2I-(aq) In a certain experiment, 4.41×10-3 mol/L of S2O32- is consumed in the first 11.0 seconds of the reaction. Calculate the rate of production of iodide ion in ...

Chemistry
Which has the highest, second highest, third highest, and lowest boiling points? 1.0.20 m MnSO4 2.9.6E-2 m Al2(SO4)3 3.8.4E-2 m Al2(SO4)3 4. 0.45 m Sucrose(nonelectrolyte) [I know it is m times i but not sure how to get "i"]

IT/235 - IMAGE EDITING AND IMPLEMENTATION
If done in-house, what equipment would be required and what costs would be incurred? How would the photography affect the day-to-day store operations under each model?

Chemistry
A solution is made by dissolving 26.7 g urea, a nonelectrolyte, in 301 g water. (The vapor pressure of pure water is 23.8 torr at 25°C and 71.9 torr at 45°C.) Calculate the vapor pressure of this solution at 25°C.

Algebra
What the minimum of y=2x^2-7x-2? How do you find it?

maths, functions
The demand in units per week for a given product as a function of its price, p, in dollars is given as D(p) = 1100 Ð 200p, the supply of the same product in units per week as a function of its price, p, in dollars is given as S(p) = 100p Ð 100. The market clearing ...

operation managment
Garden Variety Flower shop uses 625 clay pots a month. The pots are purchased at \$2 each. Annual carrying costs per pot are estimated to be 15 percent of cost, and ordering costs are \$125 per order. The manager has been using an order size of 1,500 flower pots. There are 4 ...

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