Recent content by kwikness

I really don't understand. I can only see one possible combination where all males would vote no and all females would vote yes. That would make 1 out of 256 combinations-- a probability of 0.0039 I also tried figuring it out your way, but to no avail: 1 1 1*1=1 1/256 I also thought you...

Homework Statement The 8 member Advisory Board considered the complaint of a woman who claimed discrimination. The board, composed of 5 women and 3 men voted 5-3 (respectively). The company's attorney appealed the decision based on proposed sex bias. If there was no sex bias it might be...

Thanks

Homework Statement It has been projected that the average and standard deviation of the amount of time spent online using the Internet are, respectively, 14 and 17 hours per person per year (approximately normally distributed). What value is exactly 1 standard deviation below the mean?Homework...

Describe an electrochemical cell that would determine the solubility product constant at equilibrium for cupric hydroxide and calculate it. I'm totally lost on this one, any help is greatly appreciated.

Hi, I have the following problem: Calculate the pH of a 0.200M Sodium Cyanide solution. I'm confused because this salt has no H or O atoms in it. How could it affect the pH of a solution? What formulas would I need to solve this? My final is tomorrow and I'm really worried. Thank you for...

where does the y/w come from?

This is a calculus equation, but I'm having trouble with the algebra part of it. http://calcchat.tdlc.com/solutionart/calc8e/02/e/se02e01045.gif I'm confused about how they simplify from step 4 to 5. Can someone help me?

Thanks, when I wrote it down I was missing a part of the equation. Gahhh! I always make stupid mistakes like that.

Homework Statement Find the Derivative Function of (4x - x^{2}) The Attempt at a Solution using formula: \frac{dy}{dx} = \frac{f(x + \Delta x) - f(x)}{\Delta x} \frac{4(x + \Delta x) - (-x^{2})}{\Delta x} \frac{4x + 4(\Delta x) + x^{2}}{\Delta x} Not sure...

Hi, I had a question about the following problem: http://calcchat.tdlc.com/solutionart/calc8e/01/c/se01c01067.gif Can someone explain how sin(0)/0 = 1?

Gotchya, I was trying to cancel it out rather than square it. Thanks for the help.

Wouldn't that leave me with \frac{\sqrt{5}}{2}? Could you be a bit more specific?

Thanks very much for your help Ivy. http://calcchat.tdlc.com/solutionart/calc8e/01/c/se01c01053.gif I can get up to step 4, but how do I go from 4 -> 5? What rule/formula is being used?

I've never simplified an expression with a subtraction of radicals in the numerator. I've done a bit of reading and I'm guessing the method to use would be conjugation, but I'm not sure how that would let me solve for x. Thanks for any help. \lim_{x\rightarrow 0} \frac{(\sqrt{x+5} - \sqrt{5})}x...