Tuesday
September 2, 2014

Posts by JOshua


Total # Posts: 506

math
1/4=2/8 2/8+1/8= 3/8
September 12, 2010

Economics
1. Explain why the idea of scarcity is the starting point for thinking economically. 2. Explain why an economist might look at hundreds of kids standing in line for lunch asd say, "there is an example of scarcity."
September 12, 2010

algebra
y=2x-6 4x-2(2x-6)= 12 4x-4x+12=12 12=12 infinite number of solutions
September 12, 2010

4th grade
Juan is thinking of an 8-digit number with a 4 in the hundreds place and a 1 in the ones place. What number would fit with these clues
September 9, 2010

spanish
i need help on this stem changer tu (pensar)______ que tener un perro es una cosa buena
September 9, 2010

Math
Rounded to the nearest ten I am 40. the sum of my digits is 11.. What is it?
September 7, 2010

Algebra 1
you are hiking. the total weigh of your backpack and its contents is 13 3/8 pounds. you want to carry no more than 15 pounds. how many extra water bottles can you add to your backpack if each bottle weighs 3/4 pound?
August 30, 2010

IT210 week7/ DQ1
Please post pseudocode or code showing how you would access a file as either a database or a sequential file. Describe in your code the differences between accessing the data. Post what is needed for this weeks assignment.
August 10, 2010

math
What number can be divided by 15, 5, and 3? The answer is 30 13/15 + 2/3 - 3/5 = 13/15 + 10/15 - 9/15 = 14/15
August 10, 2010

Math
Using the terms factors, divisors, multiple, product, and divisible by, write as mant statements as you can about the number sentence 4x7=28.
August 9, 2010

math-word problem
The shadow of a 4 foot pole is 6 feet long at the same time the shadow of a tower is 52.5 feet long. How tall is the tower?
July 31, 2010

social studies
The task of economic policy is to create a prosperous America. The unfinished task of prosperous Americans is to build a Great Society. Our accomplishments have been many; these tasks remain unfinished: > to achieve full employment without inflation; > to restore ...
July 12, 2010

social studies
Definition of Horse Canal
May 20, 2010

social studies
What is another name for the equator?
May 20, 2010

math
A snail climbs a wall that is 16 feet high. Each day the snail climbs 5 feet, but each night it slips back down 3 feet. How many days will it take for the snail to get to the top of the wall
May 19, 2010

Chemistry
To raise the temperature of 5 kg of water from 20 0C to 30 0C, a 2-kg iron bar is heated and then dropped into the water. What should the temperature of the bar be (ciron = 0.46 kJ/kg 0C)
May 3, 2010

science
what is believed to be the first living thing on earth?
April 28, 2010

8th grade
ABoringJob
March 20, 2010

physics
I forgot to add this part. assume this wire has a resistance R which is a constant as the hoop is shrunk. (a) What will be the current I which is induced and show the direction of this current in your figure. (b) What is the magnitude of the induced B-field at the center of ...
March 11, 2010

physics
A circular conducting hoop of wire has a constant magnetic field |~B | = 1.7 Tesla passing through it so that the field direction is perpendicular to the plane of the hoop. There is an EMF induced in the hoop with magnitude 2.6 Volts because the hoops area A is shrinking (or ...
March 11, 2010

physics
A long straight wire of radius R = 1 cm carries a total current I = 1 Amp which flows uniformly through the cross-section of the wire. Draw a diagram of this wire and the current and the magnetic field which is produced. Using Ampere’s law solve for the magnitude of the ...
March 11, 2010

physics
how to see if the barber has cut your hair properly at the back?
March 10, 2010

Temple College
had some Psychology homework resereching a female Psychiatrist named Viola Brody. but when i reaserch her online through all the major search engines i come up empty. all i've found so far is that she wrote a book witch i already knew. can you help me with a place to look ...
March 8, 2010

physics
In the operating Room, anesthesiologists use mass spectrometers to monitor the respiratory gases of patients undergoing surgery. One gas that is often monitored is the anesthetic isoflourane (molecular mass = 3.06 · 10−25 kg). In a spectrometer, a singly ionized ...
March 4, 2010

math
mr. murphy's will: john murphy was a man with a loving family, a successful career and considerable wialth. one day, upon his realizing hthat he was approaching retirement age, he decided to write up his will. shortyly thereaftr he died. Under the terms of Mr. Murphy;s ...
February 20, 2010

Math
Jenna and Tony need quarters for bus fare. Jenna has 3 x as many as Tony. Together they have $11.00 in quarters. How many coins does each have?
February 15, 2010

english
how do you get seven letters out of the word multiply you have to change letters around
January 13, 2010

social studies
why is 1776 an important year in American History? What document was written in this year
January 10, 2010

5th grade math
10 divided by 975
December 17, 2009

chemistry
a chunk of silver has a heat capacity of 42.8J/degrees celcius and a mass of 181g. calculate the specific heat of silver.
November 16, 2009

ela
what would you do if you woke up one morning and it is raining chocolate pudding, who would you tell, what would happen when you meet your friends?
November 6, 2009

math
0rad/s2
November 4, 2009

Statistics
The Internal Revenue Service is studying contributions to charity. The mean calculated from a random sample of 36 returns is $150. Assume that the population standard deviation is known and equal to $20. Construct a 98 percent confidence interval for the population mean.
October 29, 2009

Physics
What are two quantities of an object launched parallel to the ground which are equal to zero? I think one of the two is vertical velocity.
October 26, 2009

math
-8,000,000,000+999,999,999
October 22, 2009

Physics - URGENT
A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...
October 19, 2009

Physics
A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...
October 19, 2009

Physics
A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...
October 18, 2009

physics - need help right now.
A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...
October 18, 2009

Physics
A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...
October 18, 2009

AP Physics - Work and Energy
If you use the kinematic equation Vf^2=VoSin 45 + 2gd the answer would differ from one of the conservation of energy equation method. Vo=185m/s and vf=0 at max height Why is this?
October 15, 2009

Algebra
Can you please give an example step by step of how to solve a system of linear equations in three variables?
October 8, 2009

earth science
soil maps are used to do what
September 29, 2009

auto repair technician
I do not want the questions I was looking for a study partner. And yes we are allowed to have a study partner look at the rules.
September 28, 2009

science
The living plants that are most similar to the first plants to bear gametangia are the _____. a) charophyceans b) seedless vascular plants c) angiosperms d) gymnosperms e) bryophytes
September 22, 2009

Phyics
Thank You not sure how i did catch that lol.
September 16, 2009

Phyics
A Rock Is Thrown Vertically upward with a speed of 12m/s. Exactly 1.00s later a ball is thrown up vertically along the same path with a speed of 18m/s. At what time will they strike each other? so far I got this but it does not seem to be working out for me. G=-9.80m/S^2 Y1=0+...
September 16, 2009

vocabulary
slavery in the united states
September 8, 2009

social studies
slavery in the united states
September 8, 2009

6th grade
a chocolate bar is separated into several equal pieces, if one person eats 1/4 of the piecel; and the second person eats 1/2 of the remaining pieces; there are six pieces left over. into how many pieces was the orinal bar divided?
August 31, 2009

5th grade
the two violinists played a duet. is the subject , two violinists ; is the predicate , played ?
August 25, 2009

science
stalagmites
August 25, 2009

math
Manday read that the arm of the Statue of Liberty is 42 ft long. She would like to know how long the Statue of Liberty’s nose is. How would you advise her to proceed?
August 22, 2009

5th grade
thank you mrs. sue my mom said you are awesome !
August 20, 2009

5th grade
early explorers took beads with them to americans. the complete subject is early explorers ?
August 20, 2009

5th grade
how do you seperate the complete and simple subject
August 20, 2009

language arts
artists use
August 20, 2009

language atrs
whats the complete subject , artists use a needle and thread to attach beads to clothes.
August 20, 2009

5th grade
the artist
August 20, 2009

5th grade
what is the complete subject , artist use a needle and thread to attach beads to clothing.
August 20, 2009

5th grade
what is the complete subject , a person must have very good eyesight to work with beads.
August 20, 2009

Social Studies
how did sugar and slavery contribute to both the rise and fall of mercantilism?
July 28, 2009

Geography
plisss tipe in this in google jared diamonds theory
May 19, 2009

Calculus
We're doing optimization problems and this is one that I am having trouble with: Suppose a business can sell x gadgets for p=250-0.01x dollars apiece, and it costs the business c(x)= 100+25x dollars to produce x gadgets. Determine the production level and cost per gadget ...
May 3, 2009

calculus
Never mind, I figured it out; because y= csc(e^6x), the ys cancel out, so we are left with -1/6 (integral of) dy, which gives us -1/6 csc(e^6x) + C. Thank you for the help!
May 2, 2009

calculus
I know that your answer is right because it is one of the options on my homework sheet, but I don't think I quite understand how everything cancels out. If we call csc(e^6x) y from the beginning, upon initial substitution we have: (integral of) (e^6x)(y)(cot(e^6x))dx now ...
May 2, 2009

calculus
We're doing indefinite integrals using the substitution rule right now in class. The problem: (integral of) (e^6x)csc(e^6x)cot(e^6x)dx I am calling 'u' my substitution variable. I feel like I've tried every possible substitution, but I still haven't found ...
May 2, 2009

Calculus
1. Use the Taylor series to calculate the limit. Problem: limit as x approaches 0 is equal to (1-cos(x))/(1+x-e^x). I did the problem out but I need help in seeing if its correct. limit as x approaches 0 is equal to (1-cos(x))/(1+x-e^x)= (1-(1-x^2/2+x^4/4!-...))/(1+x-(1+x+x^2/...
April 28, 2009

calc.
I'm having a lot of trouble with this problem: Sketch the graph and show all local extrema and inflections. f(x)= (x^(1/3)) ((x^2)-175) I graphed the function on my graphing calculator and found the shape. I also found the first derivative: (7/3)(x^(4/3)) - (175/3)(x(-2/3...
April 20, 2009

Calculus
Does the series (1+sin(n))/(10^n) from summation 0 to positive infinity converge or diverge? I let an = (1+sin(n))/(10^n) and bn = 1/10^n lim as n approaches positive infinity = an/bn = ((1+sin(n))/(10^n))/(1/(10^n))= 1+sin(n)= positive infinity. I don't know if it's ...
April 16, 2009

Calc.
Let h(x)=16-4x-(x^3) Find g(96). My work: 96= 16-4x-(x^3) (-x^3)-4x-80=0 Using the rational roots theorm, I found that x=-4 so h(-4)=96, therefore g(96)=-4. Find g'(96). My work: g'(96)= 1/(dh/dx at x=-4) 1/((-3(-4)^2)-4)= -1/52 Does this look ok? Also, my math teacher...
April 14, 2009

Calculus
For the sequences below, find if they converge or diverge. If they converge, find the limit. an=(3^(n+2))/(5^n) an=cos(2/n) an=(2^(1+3n))^1/n I am unsure about how to get started on these problems so some assistance would be great.
April 10, 2009

Physics
thanks
March 25, 2009

Physics
Could some one tell m if this is right? 1)Does currend flow through a resistor or across a resistor in a series circuit? THROUGH 2) Is a voltage establishes through a resistor or across ? ACROSS PARALLEL CIRCUITS 1)there is a voltage drop of 6volts across each 2-Ù ...
March 25, 2009

SEX EDUCATION
NO AT ALL YOU SEXMACHINE
March 25, 2009

italian
I realy dont want this with a computer translation because it never comes out the right way could someone translate it for me? If I won 1.000.000 dollars I would go to Sardegna with all my friends for a whole year.To get their since we live in America we would take a plane ...
March 23, 2009

Calculus
I wanted to confirm that I solved these problems correctly (we had to convert the polar curves to Cartesian equations). 1.rcos(theta)=1 x=1 2.r=2*sin(theta)+2*cos(theta) r^2=2rsin(theta)+2rcos(theta) x^2+y^2=2y+2x (a little unsure what do next if this is correct) 3.r=tan(theta...
March 13, 2009

science
what is the resistance of a 200w bulb when supplied w/a voltage of 100v and has a current of 2.0 amps?
March 3, 2009

Social Studies
Research and Present findings on the countries that annually perform the hajj and it must be in a five year time?
February 18, 2009

Physicis
so it would be something like this. a. tan theta=1/2(65)/750 tan theta=0.043 theta=tan-1(0.043) theta = 2.48 degree's
February 15, 2009

Physicis
Given: Two teams of children are well-matched, and they pull on the rope with exactly the same force. They have placed a 65n weight at the center of the rope. The teams first pull with 750n of force each, then in an heroic effort to straighten the rope, pull with 1500n of ...
February 15, 2009

Math
Factorise as far as possible into Prime Factors: 5x^8 - 80y^4
February 11, 2009

SPANISH
Hola Tu me gustas mucho
February 2, 2009

math
an object accelerates only if the forces acting on it in one drection are greater than the forces in the opposite direction, all of the following objects will accelerate except
January 17, 2009

4th Grade Eng
Yesterday some people were practicing musical numbers. were practicing--is that the correct helping verb for the sentence
January 9, 2009

english
were
January 8, 2009

4th grade english
were
January 8, 2009

4th grade english
Yesterday some people (was, were) practicing musical numbers.
January 8, 2009

algebra
A train left Podunk and traveled north at 75km/h. Two hours later, another train left Podunk and traveled in the same direction at 100 km/h. How many hours had the first train travelee when the second overtook it?
January 8, 2009

9th grade
It's not a buoyant girl ant
January 7, 2009

social studies
in what city was the declaration of independece approved?
January 3, 2009

I know the answer
ALINEOFCHORUSGIRLS
December 3, 2008

4th grade English
What would be the possessive form of friends in the sentence--The homework of my friends.
November 23, 2008

chemistry
I need help with this question. What should be the cell potential if the [Cu2+] is 1.0 x 10-5 mol/L? please help
November 11, 2008

chemistry/please double check
Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi= 50*2.09*(-125)=-13.065 KJ...
October 28, 2008

Help with math
Hi, adding on to Manny's response, a simplified answer would be 19/20, by diving both the numerator (95) and denominator (100) by 5. Thanks. Hope I helped.
October 28, 2008

chemistry
sorry it was a typo and yes they didn't ask for the freezing point thanks so much
October 28, 2008

chemistry
so the molecular formula will be? c= 3.30/3.29=1, H=7.75/3.29=2, O=3.29/3.29=1 2(C3H7O3)= C6H17O6 Delta T= Kf * m T= -1.86 C/m * 0.33m/g T= o.613 C am i correct?
October 28, 2008

chemistry
I need to know if I have th right molecular formula for Sorbito 39.56g C 7.75g H 52.7g O Empirical Formula is CH2O 30.026 amu how I how calculate the molecular mass and how I figure out the melecular formula? please help
October 28, 2008

chemistry
thanks
October 27, 2008

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