Tyler

 Dec 3 comment 2 Easy GRE questionsThe first isn't compound interest, it's simple interest, you say so yourself. Nov 30 revised Calculating annuity paymentadded 98 characters in body Nov 19 comment Abelian Group Not Finitely GeneratedSee this question: Status of the Classification of non-finitely generated Abelian groups Nov 19 comment Abelian Group Not Finitely Generated$\mathbb{Q}$... Nov 19 comment how to tell if its a function in a function for calculusThe point is, there are lots of ways to compose lots of functions to get a function f(x) = x + 1. See Haakon's answer for one example. Nov 17 revised Finding a sequence of continuous functionsadded the beginning of the question to the body Nov 17 revised How to determine countability of $\Bbb N \times \Bbb N \times \Bbb N$?fixed title Nov 17 comment Calculating annuity paymentAlso, I think there's a mistake somewhere, since at the end of the 48th month, we shouldn't have any of the $c_0$ terms without interest (at least, according to my interpretation of the vaguely worded problem, which yields the given answer) Nov 17 comment Calculating annuity paymentThe question was edited to change the number of months from 60 to 48. Nov 17 revised Calculating annuity paymentchanged title to fit question. Nov 17 comment Calculating annuity paymentYes, that's right. Nov 17 comment Calculating annuity paymentNo, he gets a monthly paycheck. 3000*1.005^48 is one pay check that earns interest until the end of the 4th year. Nov 17 answered Calculating annuity payment Nov 17 comment Calculating annuity paymentAnother problem is, you are only account for one deposit of $3000$. There is a deposit every month, just like there is a withdrawal of $E$ every month. Nov 17 comment Calculating annuity paymentTo start, there are 60 months in 5 years, not 48. Nov 15 comment Consumer surplus for demand curve at the given sales level $x$Well since this is an economics question, maybe your economics teacher supposes you know it. There isn't really another way to do the problem. Sorry. If all you need is an approximate answer, try using numerical integration like the trapezoidal rule. Nov 15 comment Consumer surplus for demand curve at the given sales level $x$The $u$-substitution is just a fancy name for the chain rule applied to integrals. What else do you want? Nov 15 answered Who is our hero? Nov 15 answered Consumer surplus for demand curve at the given sales level $x$ Nov 15 revised Consumer surplus for demand curve at the given sales level $x$title was in all caps