Monday
April 21, 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...

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...

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

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.

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

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.

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

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

algebra
all been clarified, thanks

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?

algebra
great, that makes sense, thanks

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

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

algebra
thank you!

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?

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

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.

physics
it was C thanks Shakina

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

chemistry
pH

chemistry
What is the of an aqueous solution that is 0.128 M NH4Cl ?

Penn Foster Writing Assignment Writing Skills
I NEED HELLPP

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.

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?

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 ?

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

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

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