Recent content by don1231915

yes, I have no idea how to do (a) but for b I tried substituting 1 and solve for y. I don't know if it is right I am really confused when it asks for the slope PLease help if you can! Thank you so much P.S. You don't have to provide me with a solution, just some hint or help would be...

Difficult gradient problem! Consider the curve with equation x2 + xy + y2 = 3. (a) Find in terms of k, the gradient of the curve at the point (−1, k). (b) Given that the tangent to the curve is parallel to the x-axis at this point, find the value of k.

designing a physics experiment! Homework Statement need to make an experiment considering the relevant physics to investigate any physical property of this: http://www.worcestercitymuseums.org.uk/coll/ethno/ethimp/ethimp2.htm The Attempt at a Solution I thought about an outdoor...

Hey I recently did an experiment on the absorption of gamma rays I calculated the thickness and the no. of counts, got a nice exponential curve. So, I used lead as the absorbent or shielding material for gamma... Any suggestions what else I can use for gamma? I thought about sausages or...

Homework Statement OK, so I did this experiment a week ago, I took 75g of juice and added some 1.5gKI, 7.5cm^3HCl and 5cm^3starch and titrated with Potassium Iodate 0.010M(KIO3). I did this titration again For the third experiment, I just took 0.1g pure C-vitamin dissolved in some water...

Parabola or an ellipse?? Homework Statement I have a curved structure which looks like this: http://imageupload.org/pt-1412920046522.html I haven't been told specifically what it is. I assumed it to be ½ellipse. It has a height of 36m. So, I also found out the equation y=...

Cool, so that would just be x+y+z= 18, i can't download autograph (the only best 3d graphing software). I am super curious about how the graph of this might look like. Any ideas about the software? That is a really in depth explanation and sounds difficult too. I actually wanted to keep it...

Are a and b both 36? Also, I am having a really hard time differentiating it with respect to L. Wondering if you can elaborate?? AND isn't it also supposed to be a cuboid?? Thank you so much for helping!

that method is really complex, i mean is there any other way rather than using 3d graphs? Like, differentiating or something also, isn't the local maximum just (0,36) Thank you so much for helping me!

I have a upside down looking curve structure (½ ellipse). It has the following specifications: The building has a rectangular base 150m long and 72m wide. The max height of the structure should not exceed 75% of its width or be less than half the width. And the min. height of a room in the...

Optimization under differentiation! Homework Statement OK I have a upside down looking curve structure (½ ellipse). It has the following specifications: The building has a rectangular base 150m long and 72m wide. The max height of the structure should not exceed 75% of its width or be less...

Differentiating an equation! Homework Statement How do I differentiate this V(x) = 300x * sqrt(1296-x^2) The Attempt at a Solution I tried using the product rule but that didnt work at all PLease help Thank you so much!

Difficult Optimisation problem! (maximizing a cuboid) Find derivate d(x)

HELP!Extremely difficult calculus problem! Optimising to find the maximum volume. d(x)

It could be anything, but I decided it to be an ellipse So, (x^2/a^2)+(y^2/b^2) = 1 is the equation and then would a and b be both 36? if I want the height to be 36m?? So, the equation is x^2+y^2=1296 So when graphing, would the equation be just y= sqrt (1296-x^2)? That gived a...