Tuesday
July 29, 2014

Posts by Alex


Total # Posts: 2,547

AP European History
Thanks so much! You were really helpful! I got a 100 on my essay. :)

AP European History
Here's my introduction. Anything I should revise? The physical characteristics of a region can have a very significant impact on its history. Two regions very near to each other could develop completely different ways of life due to their different geographies. This relati...

AP European History
Here's my thesis statement so far: The geography of Europe, which includes several defining features such as the Pyrenees, the Balkan Peninsula, the Northern European Plain, and the Central Russian Upland, helped shape its history by defining trade routes, deciding battles...

AP European History
Thank you! -Oh, and what I meant about the thriving civilizations around rivers (Tigris, etc) might not have existed if it weren't for the rivers that provided fertile soil.

AP European History
What is the relationship between the study of geography and the study of history? What are the advantages and disadvantages of Europe’s geography? Explain the impact of Europe’s geography on European History. This is what I have so far: How are geography and history ...

social studies for kindergarten
What makes a family?Hm. People who are share problems with eachother, who like the same things and want to look out for one another...who love eachother and want to help one another...etc. A family is important so each person can have a healthy life and be mentally and sociall...

chemistry
What volume of 16M HNO3 is required to dissolve 0.50g of Cu metal in the following reaction? Cu(s) + 4HNO3(aq) ---> Cu(NO3)2 + 2H2O + 2NO2

Language Arts
I am looking at the poem, "Harriet Tubman Didn't Take No Stuff"

Language Arts
How can you display Harriet Tubman character traits in school, at home, and at play?

chemistry
balanced chemical equation for m(s) + n^(x+) (aq) ---> M^(y+)(aq) + N(s)

English
What are the effects of new media technologies on youth culture? Can you give me some example where it has been good and where it has been bad?

Managerial Finance
Assume that investors have recently become more risk averse, so the market risk premium has increased. Also, assume that the risk-free rate and expected inflation have not changed. Which of the following is most likely to occur? A. The required rate of return for an average st...

Calculus
Determine the volume of the solid formed by rotation about the x-axis of the region bounded by the curves y=4^x-1 and y = 21x on the interval 0<x<3.

geometry
6x+8x=12

enginireiring
How fast can a Farrari FXX go?

engineering
How fast can a Farrari FXX go?

space car
design a car for astronauts to drve in outer space

math
g(x) = -2/(4x+5)

physics
.0000016675

Pre-Cal: Trig
The point (7,2) determines a position angle "t". Find the exact value of sin(t).

Pre-Cal: Trig
The point (7,2) determines a poistion angle "t". Find the exact value of sin(t).

social studies
Why would the new states want a weak government?

social studies
Why do you think the number of people who would represent each state in congress was so important to the delegates?

Government
Why would the new states wanted a weak government?

Bob Pursley/ Dr.Bob!!!! please help!!!!! CHem!!!!
What is the molality of the solution when you have 48.2 % by mass KBr aqueous solution ? Show each conversion step

AP Chemistry
What is the molality of the solution when you have 48.2 % by mass KBr aqueous solution ? Show each conversion step.

Grade 12 math
Formula T= L+F/S T= time it takes to download file L= latency F= file size s= average speed of the connection Use formula to determine the Latency for a 113-kb file that downloads in 4.4s at an average speed of 43 kb/s?

Math Grade 12 college
250(1.03)^n=400 solve for n

Science
What is the density of a cylinder if the cylinder is 3.5 cm long and 4cm in diameter and has a mass of 120 g

Calculus
PLZ show work, find the rieman sum of 6 intervals of sinx from (0,pie) also find the absolute min and max of ln(2+sinx) for pie<(or equal to) x >(or equal to) 2pie

7th grade science
Please help me fill in the following: A windmill converts ________energy to _____energy.

alegebra 2
12x+20y+15z=-60

alge2
12x+20y+15z=-60

math
0.5x+2=0.2x-7 lost !!!!!!!!!!!!!!!

Statistics
The heights of the students in a statistics class are approximately normal with mean 68 inches and a standard deviation of 2.75 inches. Suppose that the heights of the 15 male students in the statistics class are also approximately normal with mean 71 inches. Would the standar...

Pre Calc
The half-Life of radioactive earthium is 2651 years. Find how many years it will take 100 grams of earthium to decay to 10 grams. I know the equation is A=Ae^(-rt) I tried working it out but I think I am doing it wrong. I did 10=100e^(-r*2651) Can anyone help? Thanks a lot

English
Hey guys, I was just wondering if you could help me find or explain to me media influence in the Hunger Games. I know this is a big part of the story, but I really need clarification. Thanks a lot guys!

Social Studies
Here are some questions i need help on. Ture or False 1.Grmans came from an area of Germany that had been devastated during a numder of wars. 2.Quaker women parted fully in religious affairs.

Conductivity
YEA UCI chem lab where 2units > 4 units

science
what would happen if inertia was the only force being acting on the earth?

math
Buses to the stadium leave Central Station every 10 minutes. Buses to the zoo leave Central Station every 16 minutes. Both buses leave Central Station at 8 p.m. Find the next time both buses will leave Central Station at the same time.

math
Three brothers divide 17 candy bars. The oldest child gets 1/2, the middle child 1/3, and the youngest child 1/9. So that they do not have to cut any bars, Mom provides an extra one. The oldest chidl then takes 9 candy bars, the middle child 6, and the youngest 2, and they ret...

trigonometry
Can you add 1 to the sqrt of 2 . Or was that the final answer.

trigonometry
Thank you soo much.

trigonometry
Using exact values,find the value of: (A=30degrees) sin 2A + tan 3A/2 - cos A + sec(A+15), when A= 30degrees There were no parentheses and no exponents. please help by showing the work in details. Thank you! I pluged in the numbers and got this I dont know if its right or wron...

trigonometry
thanks !

trigonometry
this is exactly how the question is written and i tried to solve it but i just couldn't. Can u please show me how the work was done I dont want just the answer. using the exact values,find the value of: 12 sin 30degrees - 6 tan of 45 degress + sec 45 degrees / 52. please h...

algebra
ohhh I see what I did wrong Thanks you 2

algebra
So is the answer 6sqrt(5)?? Thank you

algebra
sqrt(45)+ sqrt(20)+ sqrt(5)-sqrt(125)=?? I came up with 6sqrt5 I know it's wrong. I think I messed up the breakdown of the sqrt of 125

math
correction ab+b=3a-d

math
But the answer is 120. I have the answers to those questions. I just need to know topics they are included in so I can study.

math
What type of math is this? 25% of what is 30? and solve for a: ab=b=3a-d

Calculus
Find the dimensions of teh rectangle with the most area that will fit above the x-axis and below the graph of y=e^-x^2. Please show with every step. Thanks.

Calculus
You are given a 60 inch by 30 inch piece of cardboad and asked to make a six-sided box. If the cardboard is cut along the lines shown, what will the dimensions of the box with maximum volume? The diagram looks as follows: it is a rectangle with a shaded square in the top left ...

Calculus
Can you show me the steps you skipped? Thanks

Calculus
Find the dimensions of teh rectangle with the most area that will fit above the x-axis and below the graph of y=e^-x^2.

Calculus
it is a rectangle with a shaded square in the top left and bottom left corners.....there is a shaded rectangle in the top right corner and bottom right corner....there is a shaded square to the left of the rectangle in the top right corner and the bottom right corner....in bet...

Calculus
You are given a 60 inch by 30 inch piece of cardboad and asked to make a six-sided box. If the cardboard is cut along the lines shown, what will the dimensions of the box with maximum volume?

Biography
What was Louis Armstrong's goals?

organic chemistry
Because acyl group is a ring-deactivating and decreases the electron density.

Adult education- child care development
Sure.Why not? Why wouldn't it be appropriate?

Physics
On a recent trip to a water park, you notice there is a new slide that you ride down a steep hill, then it carries you back up another ramp and shoots you into a pool. All the kids around you are saying that you leave the ramp at 50 m/s. If the initial height of the slide is 1...

math
how can i fine the volume of 17cm 13cm 10cm

algebra
simplify: sq rt of 15/5 * sq rt of 20

AP Physics
A cowboy at a dude ranch fills a horse trough that is 1.7 m long, 50 cm wide, and 40 cm deep. He uses a 1.9 cm diameter hose from which water emerges at 1.3 m/s. How long does it take him to fill the trough? min

science
2H2(g) + O2(g) = 2H2O (l) Calculate the volume of Hydrogen gas at STP required to produce an amount of energy equivalent to that produced by the combustion of a gallon of octane. The density of octane is 2.66 kg/gal, and its standard enthalpy of formation is -249.9 kJ/mol. HEL...

math 3rd grade
Multiples of 10 can also be multiples of 5 because 5 can "go into" 10 easily, so is the same for other multiples.

2nd grade
So, which words are showing possession? Valentine's and Charlotte's, right?See, it is Valentine's Day,(The day BELONGS to Valentine, and it is Charlotte's Web, and the web belongs to Charlotte.) Understand?:)

Gr. 9 Math (continued)
O_O

US History
did you get rid of the spaces? I only put them because the website wouldnt let me put it on. It's a picture of a girl clinging to a gate nd she looks sad

US History
I need to do a poster thats for teen suffrage and I wanted to use this: h t t p : / / c d n . w n . c o m / p h / i m g / 3 0 / c a / e f 1 c 4 8 d 1 3 2 f d 1 c 1 6 0 5 b b 9 3 d 2 5 2 7 8 - g r a n d e . j p g or something like this. Would this be a good poster? I also need ...

OCHem
The amount of methylcycloheane with the substituent in the equatorial orientation at room temperature (25C) would be The Gibbs free energy for axial methyl to equatorial methyl is -7.28Kj/mol (the universal gas constant is 8.314 j/deg-mol). I cant remember how to solve this!!!...

computer science
If all the hub and authority scores are initialized to 1, what is the hub/authority score of a node after one iteration? In the preceding discussion we encountered two recommended “hard constants” – the increment on te being ten times the last fetch time, and th...

chem
AgNO3 + NaCl produces AgCl + NaNo3 how much AgCl is produced when 3.10g of AgNO3 and .600g of NaCl react?

physics
5. A truck is travelling at a constant velocity of 16.7 m/s. A pumpkin is shot vertically (at a 90o angle to the ground)at a velocity of 120. m/s from the bed of a this pickup truck. The bed of the pickup truck is one meter high (from the ground). Complete the following quest...

5th grade
how much would a trapizoid worth if the triangle eqauls 1/3

Physics
I get it now......Thanks alot.....

Physics
no....sorry I forgot to mention, the angle is 20 degree.....

Physics
I don't know.....it's written like that in the book...... It's being pushed up....... the answer is 12.9m/s.....But I dun know how to calculate it......

Physics
A block of mass 0.5 kg rests on a smooth inclined plane. It is then pushed by a horizontal force of 16N. When the block has displaced 5m along the inclined plane. What would be the speed of the block if the plane is rough and a friction of 5N is acting on the block?

5th grade math
explain how a decimal is related to a percent.

6th grade
i got the general pattern x*5/6 but there is a second part "If a movie ticket costs 7.50, what is jame's weekly allowanse?"

6th grade
if james spends 5/6 of his weekly allowance seeing a movie he has how much of his allowance left

Geometry Please Help
3x I think i could be wrong

Fractions
My denominator is 6 more than my numerator. My simplest form is 2/5 What fraction am I?_______

math-rates
1,680 kilobytes in 4 minutes ..........how do u get it....... lesson 6-2 ......rates....6th grade pg. 289 ......#2

math-rates
.....rates....6th garde.....lesson6-2 5pounds for $2.49

business law
Case study- Lola Langston decides to make it rich by forming a general partnership with her friend Irvine and opening up go-go dancing bars with females and males dancing on a stage in “skimpy” clothing. The first bar is in the town of Bugtussle and the second in the...

Physics
What would the gauge pressure be on a diver in atmospheres if she could dive to a depth of one km in sea water? One atmosphere is 1.01 X 10^5 N/m2. The density of sea water is 1.03 X 10^3 kg/m3.

Physics
A 100.0 meter long transmission cable is suspended between two towers. If the mass density is 2.00 kg/m and the tension in the cable is , what is the speed in m/s of waves on the cable?

college
If 0.0900 g of a metal, M, reacts with excess hydrochloric acid to form 5.00*10(exp.)-3 moles of hydrogen gas and a solution of MCl(subscript)3. Calculate the molar mass of metal, M and identify it. The unbalanced equation is: M(s)+ HCl(aq) =>MCl(sub.)3 + H(sub)2.

world history
Today i got asked to write 3 fact bullets about the 7 aspects of civilization With details from the fertile crescent dose that mean 7 bullets or no?

physics
a flight attendant pulls her 75 N flight bag a distance of 325 m along a level airport floor at a constant velocity. the force she exerts is 39 N at an angle of 57 degrees above the horizontal. calculate the coefficient of kinetic friction between the flight bag and the floor.

Physics
a sled mass 50 kg is pulled along snow-covered, flat group. the static friction coefficent is 0.30, and the sliding friction coefficient is .10. what force is need to get the sled moving? then, what force is needed to keep the sled moving at a constant velocity?

Chemistry
12.5 g of KCl (MM = 74.55 g/mol) is dissolved in enough water to make 675 mL of solution. Calculate the molarity of the KCl solution.

US History
Mi dispiace, I couldn’t stay High taxes were in my way And I had insufficient funds to pay So I came to the land of America Our homeland could no longer be tilled And it was to overfilled And even though I could be killed I come to the land of America So like a bird~ of p...

US History
thank you :] I need to make it at least 3 minutes but I'm kind of stuck. I know that: They worked with textiles, mills, and Cotton gins and stuff They had to Leave school They rarely accepting charity They skimped food They got part time jobs like selling fruit They had li...

US History
I'm doing a song about Italian Immigration from the 1800's for a project nd I'm kind of stuck. Can someone help me out? What I have is this: Hey fratello, wish me luck Hey sorella, I’m awestruck Hey there Nonno, I’m earning bucks In the land of bountiful ...

chesmistry
about how many skittlesium nuclei would remain after three half lives if the intial sample had 500 skittles?

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