Tuesday
December 10, 2013

# Posts by Alexandria

Total # Posts: 48

Algebra
Can someone check my algebra answers and help me with the problems I don't understand? 1. n^2-n-20/2n^2 times n^2+5n/n^2-25 answer: n+4/2n 2. (2x-6/21)/(5x-15/12) answer: 8/35 3. 5x-3/6 - x+3/6 answer: 2x/3-1 4. 5x/26 - 2x/13 answer: 1x/26 5. 3x^2/9x^5 answer: 1/3x^3 6. (x...

Calc 4
the question says to sketch the set of points in the complex plane determined by the follow. absvalue(z-(1-i))=1 this is my idea: absvalue(z-(1-i))= absvalue(z)-absvalue(1-i) absvalue(z)-sqrt(2)=1 absvalue(z)=1-sqrt(2) z=(1-sqrt(2))^2=1-2*sqrt(2)+2=3-2*sqrt(2)= x^2+y^2 then wh...

Math
the distance between any two bases on a baseball diamond is 90 feet.What is the best approximation for the direct distance from home plate to second base? A baseball diamond's four bases form a square with 90 foot sides. A right triangle is formed by home plate, first and ...

Generalization essay
Generalization ideas: All toys made in China contain lead. Mac computers are better than any others. Listening to music loud damages people's hearing. Private schools are better than public schools. All celebrities will become drug addicts. Politicians are untrustworthy. C...

Chemistry
I'm having trouble getting the right answer for a problem, I'm hoping that by posting my work someone can help me figure out where I've gone wrong. A two-liter soft drink bottle can withstand a pressure of 5 atm. Half a cup [approximately 120 mL) of ethyl alcohol C...

Chemistry
Can you convert density to moles? I am given the density of a substance [0.789 g/mL] but I need to know the number of moles for the equation. You cannot convert density to moles, unless you also know the volume and the molecular formula. (density) * Volume = mass = (# of moles...

Chemistry
A basketball is inflated in a garage at 25 degrees Celsius to a gauge pressure of 8.0 psi. Gauge pressure is the pressure above atmospheric pressure, which is 14.7 psi. The ball is used on the driveway at a temperature of -7 degrees celsius and feels flat. What is the actual p...

pigskingeography
im just kddding guys !!!!!! love yew guys :] i need help with homework guy :]lzzz

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