Tuesday
September 23, 2014

Posts by pedro


Total # Posts: 45

MATH
If there are 1 billion six hundred and forty thousand shares in circulation, and my mate says he owns 0.042% of the shares, how many shares does he hold?
September 26, 2013

CUMIUNITI
In which year did the relationship between Britain and the colonies begin to change dramatically?
September 18, 2013

science
noc
March 15, 2013

math
john saw 24 animal at a pet store 14 dogs and 3 hamsters. how many more animals should he see?
December 6, 2012

math
33x650x-43
October 22, 2012

algebra
Find the vertices and foci of this ellipse 4x^2+16y^2+64x+64y+256=0
July 10, 2012

math
the area of a square is 49 square inches. find the number of inches in the length of a diaganol. express your answer in simplest radical form.
March 9, 2012

algebra
Lisa is planning to put a border around the edge of a circular table. She needs to know how long the border needs to be so that she can buy the material. Which measurement does Lisa need?
January 31, 2012

math
a piece of fabric is cut into 12 equal lengths with 3 inches left over. Define a variable, and write an expression for the length or the original piece.
September 29, 2011

statistics
N(373,67) means the distribution is a normal distribution with mean = 373 and the variance = 67 (standard deviation = square root of 67).
September 12, 2011

History......Help
Which of the following best describes the econmic trends of the 1920s?
March 29, 2011

Math
For the sequence, describe the pattern, write the next term, and write a rule for the nth term. 2/3,4/4,6/5,8/6,...
March 1, 2011

Value of a Charge of a Body (Physics 11th Grade)
right!!
February 25, 2011

corporate finance
Can't answer without knowing the 2020 market price.
February 22, 2011

Chemistry
If mixing baking soda, (NaHCO3) with vinegar (CH3COOH) to generate carbonic acid (H2CO3), which breaks up into water and carbon dioxide gas) and sodium acetate (NaCH3COO), would the equation be: NaHCO3 + CH3COOH yields H2CO3 + NaCH3COO
February 3, 2011

math
y^2 fifth root of 64x^6 - 6 fifth root of 2x^6y^10
February 2, 2011

Math
For a model rocket, the altitude h in meters, as a function of time t, in seconds, is given by h=68t-8t^2. after how many seconds will it hit the ground?
December 11, 2010

Almeida
The two largest diner chains in Kansas compete for weekday breakfast consumers. The two chains, Golden Inn and Village Diner, each offer weekday breakfast customer a �breakfast club� membership that entitles customers to a breakfast ...
December 7, 2010

chemistry
Zinc + Hydrochloric acid --> Znic Chloride + Hydrogen Sodium hydroxide + sulfuric acid --> sodium sulfate +water Sodium + Hydrogen --> sodium hydride 2CH3COOH + Cu --> (CH3COOH)2Cu + H2
December 5, 2010

chemistry
Predict the products of the chemical reaction aluminum + iron(III) oxide
December 5, 2010

physics
The gravitational energy decreases. because P.E.= m*g*h
December 5, 2010

Physics
a= F/m =16/0.5 =32m/s v²=2*32*5 v =17.9 But I get 17.9m/s..... acceleration is equal to net force over mass or just force over mass? Anything wrong with my steps? Can I minus 17.9 by 5N which is the friction?
December 5, 2010

Chemistry
Write the word equations below as chemical equations and balance. copper + sulfuric acid yield copper(II) sulfate+ water + sulfur dioxide
December 1, 2010

Algebra
using synthetic subsititution to evaluate the polynomial functuion for the given value of x. h(x)= -8x^3+14x-35; x=4
November 29, 2010

Chemistry
is it a double replacement?
November 26, 2010

Chemistry
What kind of reaction is it when the reactants produce carbon dioxide and water
November 26, 2010

Algebra
At a flea market held each weekend, an artist sells handmade earrings. The table below shows the average number of pairs of earrings sold for several prices. Given the pattern in the table, how much should the artist charge to maximize revenue? Table: price: $15 $14 $13 $12 ...
November 17, 2010

10th grade
mass: 2.04 molar mass of MgSO4: 24.3+32.1+16*4=120.4 moles= 2.04/120.4 = 0.0169mol
November 4, 2010

physics
Find the angular speed of the Earth as it spins about its axis. Give your result in rad/ses
November 2, 2010

physics
express the angular velocity of the second hand on a clock in rev/hr
November 2, 2010

physics
A 94- astronaut and a 1200- satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.25 directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with the shuttle.What was the ...
October 31, 2010

geometry
the arc lenght of sector is 5 pie. If the circle has a radius of 18 cm, what is the measure of the central angel of the sector?
April 21, 2010

Algebra
plane ascends at a 40° angle. When it reaches an altitude of one hundred feet, how much ground distance has it covered? To solve, use the trigonometric chart. Round the answer to the nearest tenth.
October 9, 2009

Computers
//program that puts two lists in order in one single list with all the numbers in order import java.util.Scanner; public class listOrder { public static void main (String [] args){ int [] list1; int [] list2; int [] list3; int temp; list1 = new int [10]; list2 = new int [10]; ...
October 1, 2009

Computer Science
//program that puts two lists in order in one single list with all the numbers in order import java.util.Scanner; public class listOrder { public static void main (String [] args){ int [] list1; int [] list2; int [] list3; int temp; list1 = new int [10]; list2 = new int [10]; ...
October 1, 2009

English
need a spesch
July 3, 2009

Please help!!!!Accounting
. Leng Xiong is unable to reconcile the bank balance at January 31. Leng’s reconciliation is shown here. Cash balance per bank $3,660.20 Add: NSF check 370.00 Less: Bank service charge 25.00 Adjusted balance per bank $4,005.20 Cash balance per books $3,975.20 Less: ...
September 29, 2007

chemistry
use the properties of sodium cyanide described above to deduce the type of bonding that holds this compound together, explaining in 1 or 2 short sentences how you arrived at your conclusions. Write a balanced chemical equation for the reaction that occurs when sodium cyanide ...
March 7, 2007

chemistry
state noble gas whose electron configuration is attained in a lewis structure for hydrogen cyanide and noble gas attained in lewis structure for cyanogen? I have answered this several times but at times it really wasn't an answer. I am not familiar with discussing ...
March 7, 2007

chemistry
a drop of oil (volume 0.05cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule. CALCULATE the diameter of an oil ...
March 7, 2007

s103
Reaction 1 O ll CH2=CH-CH-OH + CH3-CH-CH2-C l l l CH3 CH3 OH compound 1 compound 2 Products? identify any functional groups in compounds 1&2, circle them and name them clearly? complete the equation for reation 1 by drawing the abbreviated structural formula, of the products, ...
March 7, 2007

s103
Reactants O ll CH2 = CH - CH - OH + CH3 - CH - CH2 - C l l l CH3 CH3 OH compound 1 compound 2 Products? identify any functional groups in compounds 1&2, circle them and name them clearly? complete the equation for reation 1 by drawing the abbreviated structural formula, of ...
March 7, 2007

s103
the isotope caesium -137, which has a half life of 30 years, is a product of nuclear power plants. How long will it take for the amount of this isotope in a sample of caesium to decay to one sixteenth of its original amount? - explain answer 1/16 = 1/2^x 2^x = 16 Solve for x.
March 7, 2007

S103
Which element results if 2 protons and 2 neutrons are ejected from a radium nucleus with atomic number 88 and mass number 226 - show workings? What is actually ejected is an alpha particle (helium nucleus). The new atomic number is 88-2 = 86 and the new atomic weight is 226 - ...
March 7, 2007

poetry
can you reccommend 4 humourous poems by different poets http://pages.ripco.net/~mws/Poetry/24.html by Thomas Hardy http://www.silentwords.com/Humorous.html http://dir.yahoo.com/Arts/Humanities/Literature/Poetry/Poetic_Forms/Closed_Forms/Limericks/ http://falcon.jmu.edu/~...
January 13, 2007

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