Friday
May 6, 2016

# Posts by Hector

Total # Posts: 49

Chemistry
If a metal ore contains 22.5% pure metal, how many pounds of pure metal can be obtained from 79 pounds of metal ore? Answer in units of pounds.
February 25, 2016

Spanish
1factor 20
December 7, 2015

algebra
Three minus the product of two and a number x
June 24, 2015

math
Carlos has 7 1/2 acres of farmland. He uses 1/3 of the acres to graze animals and 1/5 of the acres to grow vegetables. How many acres does Carlos use for grazing animals of for growing vegetables?
March 29, 2015

history
which of the following was the primary cause of the Balkan wars conducted during the Clinton administration?
October 1, 2014

tang ina ang hirap naman!
September 26, 2014

Math
A pack of jelly beans contains seven flavors, apricot, fig, grape, coconut, date, banana, and eggplant. How many combinations can you make with the seven flavors mixed or alone?
April 10, 2014

math
you dump a box of numbered sticks from 1 to 100, what is the probability that I will get a multiple of 5 and 8
April 2, 2014

math
you dump a box of numbered sticks from 1 to 100, what is the probability that I will get a multiple of 8
April 2, 2014

math
you dump a box of numbered sticks from 1 to 100, what is the probability that I will get a multiple of 5,
April 2, 2014

Math
The population of humorville is 8500 people. In this town Jokes travel fast, in one hour, each person who hears a joke tells three other people who have not heard it, and tells no one else. Last Friday, a visitor from out of town told the police chief a new joke at 10:00 a.m. ...
March 13, 2014

Math
How do I multiply the three dimensions? Sorry I can not understand. Could you please explain to me Thanks/
March 13, 2014

Health
La gente, que
October 17, 2013

Unscramble bowaerrd
May 21, 2013

Chemistry - Heat Capacity
tang ina nyO~
December 17, 2012

(19,_16,(_7,15)
December 13, 2012

(19,_16,(_7,15)
December 13, 2012

mixed exercises
what is 38% of 60
September 17, 2012

physics
a green bead of mass 70 g slides along a straight wire. The length of the wire from point "A" to point "B" is 0.700 m, and point "A" is 0.400 m higher than point "B". A constant friction force of magnitude 0.020 0 N acts on the bead. If ...
March 15, 2012

physics
a green bead of mass 70 g slides along a straight wire. The length of the wire from point "A" to point "B" is 0.700 m, and point "A" is 0.400 m higher than point "B". A constant friction force of magnitude 0.020 0 N acts on the bead. If ...
March 15, 2012

physics
. Compared a car (mass of 2000 kg) moving at 10 miles per hour, how much kinetic energy (in Joules) does that same car have when it moves at 20 miles per hour? At 50 miles per hour? 75 miles per hour?
March 12, 2012

Math
(cos sinx²+ sin²x²)/sin²x² = [(cos sin + sin²)x]/sin²x² =(cos + sin)/x
March 6, 2012

Math
That's easy 3:18 9:54 6:36 3*6:18 9*6:54 6*6:36 So the ratio of them is 6/1 or 6
March 5, 2012

physics
For an object in equilibrium the sum of the torques acting on it vanishes only if each torque is calculated based on your:
February 25, 2012

Chemistry
the de broglie wavelength of an electron with a velocity of 6.00 x 10^6 m/s is ____m. the mass of the electron is 9.11 x 10^-28g.
November 2, 2011

collect like terms 3a+2a^2+a-a^2
November 2, 2011

principles of marketing
Once you have developed your product/service, you then need to determine how to make it available to the end user. Using your textbook and the articles from the Databases in the AIU Library, develop a distribution system for the product/service you chose in Unit 1. Click here ...
June 26, 2011

Physics
if you use A=Mc^2 solve for A. then use common sense
February 23, 2011

chemistry
An aqueos solution is 65%(v/v) rubbing alcohol.How many millimeters of water are in a 95-mL sample of this solution?
February 13, 2011

chemistry
An aqueos solution is 65%(v/v) rubbing alcohol.How many millimeters of water are in a 95-mL sample of this solution?
February 13, 2011

calculus
Thanks MathMate!
January 21, 2011

calculus
Help!!! A rectangle piece of cardboard twice as long as wide is to be made into an open box by cutting 2 in. squares from each corner and bending up the sides. (a) Express the volume V of the box as a function of the width W of the piece of cardboard (b) find the domain of the...
January 21, 2011

math
415.16
October 2, 2010

math
At what time should each boat start so all the boarts will cross the finish line at 100 meters at the same time?
September 18, 2010

Texas History
If a legislator supported a measure letting factories be built on a river in her home district but then reversed his decision when he worried about pollution being sent downstream, which model of representation would he be following?
August 29, 2010

find the slope of the line that passes through 3 1/2,2 and -1,1/2
January 3, 2010

math
Eric deposted \$32,000 in a savings account to save for his children's college education. The bank pays 8% tax-deferred interest per year compounded quarterly. How much will his account be worth at the end of 18 years? 32,000(1.02)^72=\$113,156.50 Is this correct?
October 20, 2009

math
In a class of 36 students, 13 were absent on Friday. What percent of the class was absent? Is the answer 36 1/9?
October 20, 2009

math
Ms Price has three times as many girls as boys in her classroom Ms Lippy has twice as many girls as boys. Ms. Price has 60 students, and Ms Lippy has 135 students. If the classes were combined into one, what would be the ratio of girls to boys?
October 20, 2009

chem
Nick Hoins and Demi Higgins PDA way too much in school!!!
February 28, 2009

math
An Engineer is designing a bolt to fit a new machine. The bolt was the shape of a hexagon with a cymetrical hole in its center. The greatest distance across the bolt is 1.25cm, and the depth of 0.5cm. The diameter of the whole is 0.75cm while each side of the bolt has a length...
February 8, 2009

Math
Integrate using partial decomposition indefinite integral (1/(x^(4)+1)dx. P.S. 4 is the only exponent. Thanks
July 23, 2008

Calculus 2
If n is a positive integer, prove that integral[(lnx)^ndx=((-1)^(n))*n!](lower limit=0, upper limit=1) Thanks Again,
July 23, 2008

calculus
Determine whether the following is convergent of divergent. integral(lower limit=0, upper limit=infinity)of sin(x)sin(x^2)dx Thanks
July 23, 2008

math
the answer is n-4/4 because they won n-4 games and lost 4 so thats the ratio.
April 5, 2008

Chemistry
Copper metal reacts with concentrated nitric acid according to the following balanced equation: 3Cu(s) + 8HNO3(aq) ¨ 3Cu(NO3)2(s) + 2NO(g) + 4H2O(l) Calculate the mass in grams of the excess reagent remaining after the complete reaction of 4.63 g of Cu with 9.26 g of...
November 6, 2007

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