Tuesday
June 18, 2013

# Posts by alicia

Total # Posts: 452

math
It cost \$15.00 to buy 150 sheets of brand A's paper. it cost \$19.25 to buy 175 sheets of brand B's paper. Which brand has the better value and by how much?

math
thks

math
what is the relative error of a distance given as 550cm plus or minus 24.2cm?

Physics
A spring has a constant of 2.4 x 10^2 n/m. What force does it take to stretchmit .8m? How much PE is stored in the spring? Make a graph of the constant from .1 to 1.0 meters.

Physics
Wen an oxygen nucleus at rest is struck by a neutron moving at a speed of 1.2 x 10^8 m/s in a head on elastic collision crazy things happen. If the oxygen nucoeus is 8 times the mass if the neutrin, what us the velocity of each particle after the collision?

Physics
If a pendulum bob has a mass of 25 kg and is set in motion from a point .2m from the lowest point swing, what is the KE at the lowest point in the pendulums motion?

Assume that X is a binomial random variable with n = 5 and p = 0.35. Calculate the following probabilities?

what is Australia's finance sector competitive issues?

Math
Sarah is following a recipe that calls for 1 1/4 cups of flour. About how many cup of flour would she need to make 4/9 batch of the recipe?

Calculus
Find the equation of the tangent plane at the given point. 1)x^2+y^2-z=1 at the point (1,3,9) 2)x^2*y^2+z-40=0 at x=2, y=3 3) x^2+ln(xy)+z=6 at point (4,0.25,2) For the first one I got the partial fraction in terms of x, y and z and my final answer was -2x+6y-z+2. I don't ...

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