A Bit of Math Help EDIT: Sorry guys, I was vague. I edited the thread. I tried Googling this, but it didn't give what I needed. Anyway, how do you show work substituting into dy/dx if you were given (x,y) coordinates? I know how to do the work, yes, but how do I convey the work shown so that I can show that I'm substituting a coordinate using dy/dx as the expression? Like for example: You were given the coordinates (2,3) and you had dy/dx= x+y and you were supposed to the find the tangent line: I tried doing d(3)/d(2) = (2)+ (3) but that isn't a proper way to show that I'm substituting. I have also tried dy --- dx | x=2, y=3,but would that work?
Best Way of Increasing your Iq? Lately..I feel slow, in my head. I..can't comprehend anything at school anymore. I also feel stupid at times where I don't get my friend's jokes, or just trying to follow simple instructions. I feel really stupid, to come here and ask Basil, but Google isn't really telling me much. I can't tell if the results from the search Engine are serious. So Basil, what is the best way of increasing your IQ, despite the fact that you have countless trolls and immature people? (I'm really gasping straws here..)
Chemistry help please? Sorry, I really do not know how to do net ionic equations so I thought I could turn to you basilers for help. -You created a standard solution where you dissolve 28.00 g of iron (III) sulfate in enough water to create a 350.0 mL solution. a.) Create a balanced equation showing the dissociation of iron (III) sulfate into ions (consider the compound to be aqueous when dissociating). b.)Determine the moles of iron (III) sulfate dissolved, and then determine the number of moles of each ion created. c.) Determine the molarity of iron (III) sulfate, and then determine the molarities of each ion. Also, can you guys explain it step by step how to do it? I'm really lost..