Tuesday
December 10, 2013

# Posts by Lina

Total # Posts: 134

Microecinomics
Opportunity cost is represented by what you're losing by choosing one option. For example, by going to the movies your opportunity cost is doing your homework. Therefore, the opportunity cost of producing potatoes is 50 chickens. The opportunity cost of producing chickens ...

Chemistry for Engineers
A gas is confined to a container with a massless piston at the top. (Part C figure) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45 L. When the external pressure is increased to 2.50 ...

chemistry
A gas is confined to a container with a massless piston at the top. (Part C figure) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45 L. When the external pressure is increased to 2.50a...

pre algebra
If the question is what is the product of (8x^5-5x)(7x^3) you can find this by using the FOIL method. i.e-(8x^5)(7x^3)-(5x)(7x^3)= 56x^5+3-35x1+3= 56x^8-35x^4

math
Speed of gravity: 9.8meters/second Given 0.02 seconds, you can use conversion method. 9.8m/s*0.02seconds=0.196meters

Algerbra
This is a system of equations. x-y=8 x+y=-2 The easiest way to solve would be the elimination method because it is already set up; if you add the equations, the y cancels out and gives you: 2x=6 Further, x=3 Given x you can find y in any equation above; x-y=8 Substitute the 3:...

math
Anonymous is right. m is the slope of the line and b is the y intercept. So the graph will have a negative slope of (rise/run) -2/3 and it will cross the axis at y=45

Algebra
Well, you could multiply everything by 100 to get an easier function: y=-3x^2+14x+143 in which you could try and use the quadratic theorem [-b +/- sqrt(b^2-4ac)]/2a Giving you: -14 +/- sqrt(196-(-1716)/-60 [-14 +/- sqrt(1912) ]/-6 You cant simplify too much. But you get the id...

world history
Many early historians tended to look at the past in terms of

physiC
A uniform door (0.81 m wide and 2.1 m high) weighs 150 N and is hung on two hinges that fasten the long left side of the door to a vertical wall. The hinges are 1.9 m apart. Assume that the lower hinge bears all the weight of the door. Determine the magnitude and direction of ...

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