Saturday
December 20, 2014

Posts by sab


Total # Posts: 27

computers
What overriding philosophy of the Windows 8 operating system makes it unique compared to earlier Microsoft operating systems? A. It is a universal operating system for all types of devices. B. It can host both 32- and 64-bit applications. C. Up to 192 users can have a separate...
March 5, 2014

Devry
1. You are part of a team given the task of designing an application to determine a students letter grade for a short course. The application will process a quiz, a project, a midterm exam and a final exam to determine the total score. The result of dividing the total score by...
March 1, 2013

maths-help please?
what is the algebra to reveal xv=15.625? trying to get my head around this but it is not sinking in
August 30, 2012

maths-help please?
A cicular opaque disk, 25cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen.
August 30, 2012

maths/physics
Can someone please help me- don't know how to get started?
August 30, 2012

maths/physics
Please I need some help with this question A cicular opaque disk, 25cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen.
August 30, 2012

algebra
thanks, wasnt sure whether i could simplify that last line or not
August 28, 2012

algebra
Can someone please check my answer? Rearrange (cp-yd)/(pd)=p+y to make d the subject OK, I did cp-yd=pd(p+y) cp=pd(p+y)+yd cp=p^d+pdy+yd factoring out the d cp=d(p^2+py+y) cp/(p^2+py+y)=d
August 28, 2012

algebra
all been clarified, thanks
August 28, 2012

algebra
Rearrange (r+s)/8s=(r-s)/8n to make r the subject. OK, I have started by rearranging the formula: 8n(r+s)=8s(r-s) 8nr+8ns=8sr-8s^2 What do I do next?
August 28, 2012

algebra
great, that makes sense, thanks
August 28, 2012

algebra
just realised, should the second line be 8nr+8NS?, not 8rs?.........
August 28, 2012

algebra
just realised, should the second line be 8nr+8NS?, not 8rs?
August 28, 2012

algebra
thank you!
August 28, 2012

algebra
Rearrange r+s/8s=r-s/8n to make r the subject. OK, I have started by rearranging the formula: 8n(r+s)=8s(r-s) What do I do next?
August 28, 2012

maths/physics
Need help..... A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen
August 28, 2012

geometry
the measure of an angle of a parallelogram is 12 degrees less than 3 times the measure of an adjacent angle. explain how to find the measures of all the interior angles of the parallelogram.
March 7, 2011

physics
it was C thanks Shakina
March 4, 2011

chemistry
Suppose you wanted to produce an aqueous solution of = 8.65 by dissolving the following salt KNO2. At what molarity would you use?
March 28, 2010

chemistry
pH
March 28, 2010

chemistry
What is the of an aqueous solution that is 0.128 M NH4Cl ?
March 28, 2010

Penn Foster Writing Assignment Writing Skills
I NEED HELLPP
March 24, 2010

chemistry
Determine the molarity of in an aqueous solution at equilibrium with air at normal atmospheric pressure. The volume percent of in air is 20.65 Under an pressure of 1.00 , 28.31 of dissolves in 1.00 at 25.
February 21, 2010

chemistry
Im still not sure what to do. If i convert the .0455 moles into grams and then use the density to find ml, how does that take into account my 1kg of water?
February 20, 2010

chemistry
How many milliliters of glycerol, d=1.26 g/ml, must be added per kilogram of water to produce a solution with 4.55 mol% C3H8O3 ?
February 20, 2010

Chemistry-Science
the 3rd part its sqrt(a^2+b^2+c^2)
February 14, 2009

French
Could you help me find the story of Dantés in english, or french. Thanks
May 15, 2008

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