Friday
August 29, 2014

Posts by Kristina


Total # Posts: 171

Calculus
This is a tough one :( The region between the graphs of x=y^2 and x=6y is rotated around the line y=6. Find the volume of the resulting solid please... i am unable to get the correct answer :(
October 22, 2010

chemistry
0.00097973
October 11, 2010

economics
How do you think our nation’s output should be distributed according to income or according to some other standard (such as basic human need)?
September 12, 2010

Science/Math
If the temperature of a room is 70 degrees F, what is the temperature of the room in Celsius? In Kelvin?
September 6, 2010

college_anthropology
What does miners piece tell us about the difficulty of describing another culture?
September 1, 2010

anthropology
What ethical challenges come up when studying another culture? How does one balance the fact that anthropology is part social science, part humanity, and part biology?
September 1, 2010

algebra
in a mixture if concrete, there are four lb of cement mix for each pound of gravel. if the the mixture contains a total of 195 lb of these two ingredients, how many pounds of gravel are there?
July 11, 2010

math
a minor league baseball team plays 88 games in a season . if the team won 17 more then twice as many games as they lost , how many wins and losses did the team have
July 11, 2010

Trig
Prove the trig identity cos(4x)=2-sec^2(2x)/sec^2(2x)
April 14, 2010

algebra 2
3 radical 4x^2 time s radical 6x^4 times 3radical 9x
March 21, 2010

12th grade
The three fifths compromise and the commerceand slave trade compromise were included in the constitution at the insistence of the southern states. Why did states in the south think these items were important and what price, if any, did southern states pay for their inclusion
January 25, 2010

french
this means the first floor
January 25, 2010

history
what do they mean by describe the social,composition of the decade of corporate greed
January 20, 2010

Math
Dwayne passes the 0 point running 4 meters per second to the right.Where is he 5 seconds later?Write a number sentence.
January 10, 2010

Chemistry
Could you explain in detail why a saponification reaction is considered to be the reverse of an esterification reaction.
October 20, 2009

science
what type of electromagnetic radiation does a flame emit?
October 13, 2009

college
The radiator in a certain make of car needs to contain 20 liters of 40% antifreeze. The radiator now contains 20 liters of 20% antifreeze. How many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?
October 4, 2009

Physics
A golfer rides in a golf cart at an average speed of 3.10 m/s for 21.0 s. She then gets out of the cart and starts walking at an average speed of 1.60 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.10 m/s? I need...
October 2, 2009

Physics
In a historical movie, two knights on horseback start from rest 94m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.22 m/s2, while Sir Alfred's has a magnitude of 0.27 m/s2. Relative to Sir George's starting ...
October 2, 2009

Physics
I need help solving for T!!!
October 2, 2009

Physics
A golfer rides in a golf cart at an average speed of 3.10 m/s for 21.0 s. She then gets out of the cart and starts walking at an average speed of 1.60 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.10 m/s?
October 2, 2009

Literaure- King Oedipus
One more question........ Who was King Oedipus lead away from?
September 8, 2009

Literature- King Oedipus
Who did Oedipus believe was his father?
September 8, 2009

hhs 265 math accounting
The following data represent total personnel expenses for the Palmdale Human Service Agency for past four fiscal years: 20X1 $5,250,000 20X2 $5,500,000 20X3 $6,000,000 20X4 $6,750,000 Forecast personnel expenses for fiscal year 20X5 using moving averages, weighted moving ...
June 8, 2009

Chemistry
An element has ccp packing with a face-centered cubic unit cell. Its density is 8.92 g/cm3 and the unit cell volume is 4.72 x 10-26 L. Calculate the molar mass (g/mol) of the element to three significant figures.
May 16, 2009

Chemistry
An element has ccp packing with a face-centered cubic unit cell. Its density is 8.92 g/cm3 and the unit cell volume is 4.72 x 10-26 L. Calculate the molar mass (g/mol) of the element to three significant figures.
May 16, 2009

physics
when you brake a car at a stop sign, what force provides the impulse to stop the car?
March 12, 2009

7TH GRADE MATH
100x.72=72, so 100+72 10x.30=3, so 10+3 and so on..
March 12, 2009

Chemistry
How do you determine the number of moles in 78.6 grams of carbon tetrachloride (CCl4) ?
February 19, 2009

Chemistry
How do you determine the number of atoms in 28.7 grams of gold (Au)
February 19, 2009

Physics
This is a projectile motion problem where I need to find the velocity and angle I launch a ball at to hit a ship. The ball is on a cliff 400 m high, and the ship is 250 m away from the cliff. The ship is moving away at a velocity of 40 m/s. What velocity and angle should I ...
December 18, 2008

appeal letter
Be honest. Tell them where you need help and what YOU will do in order to make a change and be more successful.
December 5, 2008

3rd grade
Thank you so much!
December 4, 2008

3rd grade
How can you use two multiplication facts to multiply 6 x 9? Use the array below to explain how you might multiply. ********* ********* ********* ********* ********* *********
December 4, 2008

3rd grade
1) Kevin is making yogurt bars for a picnic. He has 6 rows of yogurt bars on a tray. There are 3 bars in each row. How many yogurt bars does Kevin make? Answer: 6 x 3 = 18 yogurt bars 2) HOW CAN YOU USE MULTIPLICATION FACTS FOR 1 AND 2 TO FIND 3 x 7? I don't understand the...
December 4, 2008

3rd grade
The question is: If the ones digit of a number greater than 1 is 0, what factor or factors must that number have? a) 2 only b) 5 only c) 2 and 5 d) neither 2 or 5 I thought neither D as it would have to be a number such as 10. 10 + 10 = 20 10 + 10 + 10 = 30 leaving zero's ...
November 11, 2008

3rd grade
Does anyone know what the 1-1-1 rule in regards to spelling?
November 3, 2008

Math
a minor league baseball team plays 88 games in a season . if the team won 17 more then twice as many games as they lost , how many wins and losses did the team have
October 30, 2008

math
Solve this equation. Verify your solution using a graphing utility. log_1/3(x2 + x) - log_1/3(x2 - x) = -1
October 25, 2008

math
Solve this equation. Verify your solution using a graphing utility. log_a(x - 1) - log_a(x + 6) = log_a(x - 2) - log_a(x + 3)
October 25, 2008

math
Express y as a function of x. The constant C is a positive number. ln y = 9x + ln C
October 25, 2008

math
Express y as a function of x. The constant C is a positive number. ln y = ln x + ln C
October 25, 2008

math
Suppose that ln7 = a and ln8 = b. Use properties of logarithms to write this logarithm in terms of a and b. ln root5(56)
October 25, 2008

math
Suppose that ln2 = a and ln3 = b. Use properties of logarithms to write this logarithm in terms of a and b. ln8
October 25, 2008

Math
Use properties of logarithms to find the exact value of this expression. Do not use a calculator. 6log6 8 - log6 7
October 25, 2008

3rd grade
Thank you!! I really appreciate your help! ( :
October 8, 2008

3rd grade
There are 33 students in the band. There are 6 more fifth-grade students than third-grade students. There are an equal number of third- and fourth-grade students. How many third-grade students are in the band?
October 8, 2008

Medical Billing and Coding
I have to do a research paper on Lupus. I need help with an introduction paragraph. ( 3-5 sentences) and a conclusion paragraph.
August 11, 2008

N/A-General Question
Do you say by hard or by Heart??
July 15, 2008

Math
If a daily dosage of drug is 0.2 mg per kg of body weight how much should a 100 lb person take?
May 13, 2008

Math
If 8/3 = 3/x then x = ? Thanks in advance
May 13, 2008

Math
A car travelling at 25 km per hour and gets 5 km per litre of gasoline, how long can the car travel on 20 litres of gasoline?
May 13, 2008

Statistics
What is y x u= -21
May 10, 2008

radical math
radical .01X to the 4 y to the 2
April 16, 2008

Maths probability
999:1000 i think IM NOT SURE tho... sorry
April 15, 2008

math
need help again mutliply x(x+1)(x-1) and factor completely 6y^2-2yz and 8g^2j-12g^3hj thanks guys I appreciate it.
March 7, 2008

math
I must simplify this equation and am having a hard time (5+2a+3a)-(a2+a-6) I also would like to know if you could help me with this onex(4x2+3x-5)-2(4-x2) this is also simplifing. I have a really hard time with these, thank you
March 6, 2008

math
how do you factor 18c^4-9c^2+7c ?
February 26, 2008

Business
Consider a local business whose services you frequently use. What are the main components of this company's business model? Using Figure 1.2 on p. 11 of your text as a guide, describe the three components of the business system that comprise the local business you selected...
February 15, 2008

social studies
I need some examples of cruelty to creation for a school project
November 8, 2007

Thermodynamics
The molar enthalpy of formation of water vapor is -241.82 kJ/mol at 298 K. Calculate the molar enthalpies of formation of water vapor and of liquid water at 100 C and at -0.1 C (four values).
October 3, 2007

CHEM
Calculate the molar solubility of gold(I) chloride (Ksp= 2.0 x 10^-13) in .10 M NaCN. The complex ion formed is [Au(CN)2]- with Kf= 2.0 x 10^38. Ignore any other competing equilibrium systems. I'm having trouble writing an equation to start off with. First, I had written ...
April 15, 2007

Chemistry
Consider the reaction Zn(OH)2(s) + 2CN-(aq) <--> Zn(CN)2(s) + 2OH-(aq) a) Calculate K for the reaction. (Ksp Zn(CN)2= 8.0 x 10^-12) b) Will Zn(CN)2 precipitate if NaCN is added to a saturated Zn(OH)2 solution? I tried splitting this into two equations: Zn(OH)2(s)<--&...
April 11, 2007

Physics
By how much does the H20 pressure exceed atmospheric pressure at 3 meters below the surface of a pool with fresh H20. I don't know what equation to use. You have to figure the weight of a column of water of some height h, and horizontal area A. Weight= mg= density*volume*g...
March 29, 2007

physics
What would be the final temp when 100 kg of 0 degrees Celcius cold water is mixed with 60 kg of 35 degrees warm water? Ans is in degrees Celcius. The sum of the heats gained is zero (remember one will lose heat, so have a negative heat gained). Heatgained by cold water + heat ...
March 29, 2007

legal studies
how in practice the operation of local court differs from that of others??? I have a judge here in our local district court who drives me mad with his innane dress code for men. I think he has a fixation on ancient times. I wonder sometimes if he would rather be addressed as ...
March 29, 2007

Physics
In the old days, on a cold winter night it was common to bring a hot object to bed with you. Which would be better to keep you warm through the cold night - a 10 kg iron brick or a 10 kg jug of hot water at the same temperature? 10 kg iron brick 10 kg jug of hot water WHY?!!
March 27, 2007

none
turn polar bears white And I will make you cry. I make guys have to pee And girls comb their hair. I make celebrities look stupid And normal people look like celebrities. I turn pancakes brown And make your champane bubble. If you sqeeze me, I'll pop. If you look at me, ...
March 23, 2007

AP U.S. History 1920's immigration
who were the immigrants in the 1920's
February 21, 2007

Physics
yes
October 3, 2006

orientalism of muslim and arab american
UOP~It makes me laugh that this question has been a problem for years. Even after reading the informaiton in the text, there are additional questions that need to be answered and is difficult to find anything else on this topic.
August 6, 2006

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