Wednesday
December 11, 2013

Posts by Rob

Total # Posts: 325

calculus
prove that 5x - 7 - sin3x = 0 has at least one zero and prove that it has exactly one real zero. How am I supposed to show my work for this? I don't really understand how to show my work for the IVT. Without that I can't do any work for the MVT.

Math
It's D!

math
just the basic formulas for area, length, and width

chemistry
What is R and T stand for?

physics
One gram of water changes from liquid to solid at a constant pressure of one atmosphere and a constant temperature of 0°C. In the process, the volume changes from 0.90 cm3 to 1.10 cm3. The work done by the water is .02J, but I'm not sure how to find the internal energy...

Math
Random variables X and Y are both normally distributed with mean 100 and standard deviation 4. It is known that random variable X+Y is also a normal distribution. a. What is the mean of X+Y? b. What is the standard deviation of X+Y? I see that the mean is 200 but I don't k...

There are 7oz of suger in a suger 16oz box of honey.What percent of honey is suger? Round to the nearest percent.

physics
because they are opssite forces acting on eachother

Chemistry
How much energy is associated with a photon in the gamma ray region of the spectrum with a frequency of 6.6*10^5s^-1

Chemistry
Calculate the frequency of a photon of orange light whose wavelength is 6.2*10^5m. (meters)

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