Saturday
April 19, 2014

Posts by Nicholas


Total # Posts: 89

chemistry
8.22 g of CuNO3 is dissolved in water to make a 0.590M solution,what is the volume of the solution

algebraI
192

ap physics
A spherical comet of mass m and diameter is d, travelling at velocity v enters a cloud of stationary cosmic meteoroids (small rocks). The average density of the cloud is p. When a meteoroid impacts the comet it adheres to its surface. As a result the comet slows down and after...

world history
What are two positive and negative and things about civilization

math (please help!)
But that answer is wrong!

math (please help!)
What is the sum of all the constants k such that |x^2−169|−x−k=0 has three distinct real roots?

math
Thank you.

ela, english
TRUE OR FALSE: It is imperative that you pace yourslef because of a test is timed?

american history
For revolutionaries like Sam Adams, what term embraced a way of life, a core ideology, and an uncompromising commitment to liberty and equality.

Algebra
Find the balance in the account, 4,000 principal earning 6% compounded annually after 5 years.

Geometry
For what values of x and y musy ABCD be a parrallelogram

math
A type of bacteria reproduces by splitting in two every thirty minutes. How many bacteria will there be after 4 hours if there are 2 bacteria to begin with?

6th grade math
Can't figure this math problem out: Write an algebraic expression for the product of five less than a number and three, less eight, is twenty-eight. HELP ME PLEASE!!

Math
What are the least and greatest numbers written in the hundredths that could round to 164.8 and explain your answer?

Math
A garden against the wall of a house is to be surrounded on three sides by a total of 336m of fencing. What dimensions of the garden will result in an area of 14,112m^2?

intermediate algebra
solve each formula for the specified variable, y-y^1 = m(x-x^1) for x

calculus
A force of 13 N is needed to keep a spring with a 2-kg mass stretched 0.25 m beyond its natural length. The damping constant of the spring is c = 8. If the mass starts at the equilibrium position with a velocity of 0.5 m/s, find its position at time t.

Science
A boy exerts a force of 15N to push a motor bike which has flat tyre for a distance at 30m.calculate the mass of the motor bike. Calculate the density of the motor bike.calculate the work done by the boy.[take g=10m|sm2

Science
A boy exerts a force of 15N to push a motor bike which has flat tyre for a distance at 30m.calculate the mass of the motor bike. Calculate the density of the motor bike.calculate the work done by the boy.[take g=10m|sm2

chemistry
I balanced an equation between lead(II) nitrate and potassium sulfate and ended up with: Pb(NO3)2 + K2SO4 --> PbSO4 + 2 KNO3 If 0.87 moles of potassium sulfate react with an excess amount of lead(II) nitrate, how many moles of lead(II) sulfate would be formed? I know I star...

physics
a car mass 100kg is moving up on incline of 15 degrees with horizontal.the enginr of the car applies a force of 5000n the confficient of kinetic friction between the surface of th tyic and road is 0,2.draw a free body diagram showing all the forces actin on the car

American Literature
I am writing a critique for my American Literature class on The Great Gatsby and I am so stuck. I don't know exactly how to prove my thesis. I need four different points. My thesis: Gatsby achieves the American dream by becoming quite successful; however, achieving the Ame...

Social Studies
What countries in South America have the highest elevation?

Reading
lol yes it is

Reading
Its really line 15

Reading
Its really line 15

algabra
cubes 1 and 2 are similar if the volume of cube 2 is 45 and the scale factor between sides of the two is 2:3 what is the volume of cube 1?

Chemistry
CO2(g) + 2 NH3(g) CO(NH2)2(s) + H2O(g) What volumes of CO2 and NH3 at 193 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?

math
what is the answer240/20multiply6-13plus41

Statistics
An urn contains 8 chips, numbered 1 through 8. A sample of 3 is drawn without replacement. What is the probability that the largest chip in the sample is a 5?

math
You are given the probability of event E. Find the odds in favor of event E and the odds against event E. a. 1/8 b. 2/5

math
Sabino took the ACT in 2003 and received a composite score of 22. If the mean and standard deviation for that year were, respectively, 20.8 and 4.8, what percent of all of the students who took the exams scored better than him?

math z-score
Henry's z-score on his reading test was 1.27. The class average was 60, the median was 58.5 and the variance was 6.2. What was Henry's "raw" score (his score before converting to z-scores)

medical assisting
imformation should include____________,_____________, and ________, procedures

PPPPPhysicssssss
kinda need it.......... assignment is due in 15 minutes....

Math
Which is a prime factorization? a. 5^2 x 7^2 x 18^3 b. 5^3 x 7^2 x 19^2 c. 6^2 x 7^3 x 18^2 d. 4^2 x 5^2 x 15^3

Math
Simplfy 10^1 x 10 ^-2 x 10 ^-1

math
solve using the elimination method. If the system has no solution or infinite number of solutions a state this 4x-6y=30 3x-5y=24

math
A 75ft diagnol brace on a bridge connects a support of the center of the bridge The horizontal distance that it spans is 15ft longer than the hieght that reaches on the side of the bridge.Find the horizontal and vertical distance spanned by this brace

math
A 75ft diagnol brace on a bridge connects a support of the center of the bridge The horizontal distance that it spans is 15ft longer than the hieght that reaches on the side of the bridge.Find the horizontal and vertical distance spanned by this brace

Precal
A hot-air balloon, headed due east at an average speed of v = 14 miles per hour and at a constant altitude of h = 120 feet, passes over an intersection (see the figure). Find an expression for its distance d (measured in feet) from the intersection t seconds later.

Networking
I was wondering if when I posted my paper, everyone would help me proof it and help me find references, I've done most of it by memory, and what I would do situations, but I need references. If you would that'd be awesome

3rd grade math
which unit makes this sentence true? Use gram ro kilograms. A CD had a mass 10

Social Studies
I am looking for facts about Theodore Roosevelt for a project.

Homework
Thank you

Homework
What 5 leter words can you get out of these letters: eeiochrs I already got: chores, choir, chore, cheer - need 2 more

Math
1234

3rd grade
Need help unscrambling these letters: eeiochrs

8th grade
no

just want 2 know
if people dont think troy was a real place why is it in so many history books...

MLK high school
i think its (a) but i know its not b or d sorry i do not know for sure

grammar
the windows were quite cloudy.

9th grade
x=6

9th grade
knock on boos door and he was close to getting shoot he last his pants and had 2 go back for them

Science 8th grade
What is the mass of a piece of aluminum that has a volume 100.0^3?

science
Science Experiment Determine a mathematical modelwhich describes the height of a ball in terms of th number of bounces after it has been droped from a given height. If a ball that bounces like a tenniis ball, is dropped from a given height, then it will bounce to a height less...

9th grade, Biology
it would change with it surrounding or die from the change...

9th grade
ty

math
how to solve negative output problems

9th grade, SOSE
no he just started the war. after he died we was still fighting the japs

Math
i am a four digit number. all of my digits are different. my first digit is twice my fourth digit. my second digit is twice my first digit.my last digit is twice my third digit. the sum of my digits is 15. what number am i?

same type of binomial theorem question
Question: Find the first 3 terms in the expansion, in ascending powers of x, of (2 + x)^6. Hence, obtain the coefficient of x^2 in the expansion of (2 + x - x^2)^6 I know the first part of the question, and the first 3 terms are (64 + 192x + 240x^2 + ...) How do i use this ans...

Algebra
you're correct, x=1 and x=0

binomial theorem again
How do i do this question using the binomial theorem concept? It says, expand (2+x)^5 up to x^2 term, hence, expand (2 + x + x^2)^5 up to the x^2 term. I could do the first part, and the answer would be (32 + 80x + ...) But how should i make use of the answer i got in the seco...

binomial theorem!
How do i do this question using the binomial theorem concept? It says, expand (2+x)^5 up to x^2 term, hence, expand (2 + x + x^2)^5 up to the x^2 term. I could do the first part, and the answer would be (32 + 80x + ...) But how should i make use of the answer i got in the seco...

8th grade
no this is a math with pizzaz riddle i need the answear

8th grade
What Do Race Car Drivers Really Do?

music
how we named the note that is above the first line on the bass clef?

4th grade
I don't get the notes on the bass clef I get confused do any of you people know all of the notes

9th grade
ya

arithmetic
What are the multiples of 3

6th grade
what are the four long periods of history as defined by western societies

Physical Science
How can computers predict the outcome of an election soon after the polls close but before all the votes have been counted?

Geography
What is the importance of a state capital?

physics
An air bubble at the bottom of a lake 35.0 m deep has a volume of 1.88 cm^3. If the temperature at the bottom is 5.4 C and at the top 19.5 C, what is the volume of the bubble just before it reaches the surface?

Pre Algebra
_12 + 4n = 6(n-2)

history
Who was Minnesotas first school teacher

grammar
Is the abbreviation Pkwy. a proper noun? How about Mt.? It seems like mount would be a common noun since it is not with a proper noun, but it is capitalized.

science
what are the five groups of vertrbats?

math
help with solving a magic square http://www.jiskha.com/display.cgi?id=1125461237.1125498843 MAGIC SQUARES Magic squares, those seemingly innocent looking collections of numbers that have fascinated so many for centuries, were known to the ancients, and were thought to possess ...

Ancient Civilization
The correct answer is mortar

maximum and minimum problems when function unknown
Once you have the area of the window in terms of the width then you can think of w as x and the area as y. Graph the function and you should know how to find critical points of this function (where derivative is zero).

integration by part
s- integral s (p^5) lnp dp ? = (lnp)[(p^6)/(6)] - s (i'm confused here) Let ln p = u and p^5 dv = dv du = 1/p and v = p^6/6 The integral can be written uv - v du = (ln p*p^6)/6 - S (p^5/6) = (1/6)ln p*p^6 - ??? Complete the last step

integration by parts
s- integral s ln (2x+1)dx ? = ln(2x+1)x - s x d( ln (2x+1)) = ln(2x+1)x- s x [(2x+1)'/ (2x+1)] dx = ln(2x+1)x- s x [(2)/ (2x+1)] dx = ln(2x+1)x- s (2x/2x+1) dx = ln(2x+1)x- s [(2x+1-1)/(2x+1)] ... i'm confused about why there is a minus 1 after the integral

integration by parts
s- integral s ln (2x+1)dx ? = ln(2x+1)x - s x d( ln (2x+1)) = ln(2x+1)x- s x [(2x+1)'/ (2x+1)] dx = ln(2x+1)x- s x [(2)/ (2x+1)] ?... then i'm confused... "ln(2x+1)x- s x [(2)/ (2x+1)] ?... then i'm confused..." x [(2)/ (2x+1)] = 2x/(2x+1) = (2x+1-1)/(2x+...

chemistry
If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is - 544 kJ/mol, heat of reaction, CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) , is -192 kJ/mol. and heat of formation of water is -286, what is heat of CaO? i found that the formation of CaO is -638. However, I'm confused abo...

chemistry
If heat of reaction, Ca(s) + 2H+(aq) Ca2+(aq) + H2(g) , is - 544 kJ/mol, heat of reaction, CaO(s) + 2H+(aq) Ca2+(aq) + H2O(l) , is -192 kJ/mol. and heat of formation of water is -286, what is heat of CaO? Ca(s) etc is equation 1. CaO + 2H^+ etc is equation 2. H2 + 1/2 O2 ==>...

ethics
Kambriea... do happen to mean google? :P

Paul Martin
Who knows what website I can go to for some baby pictures of Paul Martin? It is for my social studies project. Thankz:P I did an internet check and found only pictures of the Prime Minister as an adult. I suggest you try finding a biography in your library. There is also a Pau...

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