Homework/Study Tips

Recent Answers

2009-11-21 Calculus - Lim sin x/x:

Lim x→0 {(sinx°)/x} =? ANSWER: Questioner: akkha Country: Nepal Category: Calculus Private: No Subject: mathmetical problem Question: sir I have a mathmetical problem in limit and

2009-11-21 Word Problems - Percentages:

Taje $x abd invest it at 2%. That leaves $(3000-x) to be invested at 5%. The equation to solve is $x(2%) + $(3000-x)(5%) = $(3000)(4%). This mulitplies out to 0.02x + 150 - 0.05x = 120. Combine

2009-11-20 Calculus - Derivatives:

It can be said that f²(x) = x^2 + 1, so take the derivative. This gives 2f(x)f'(x) = 2x. Solve for f'(x) and get f'(x) = x/f(x). f"(x) = (f(x) - xf'(x))/f^2(x), and at this point I'll drop the x's

2009-11-20 Word Problems - maths problem:

Let me see if I understand the problem. A bicycle dealer allows 10% discount on his bicycles. He still makes a profit of 20% on each bicycle. If the total profit he makes is 150, what is the list

2009-11-20 Literature - Homer:

Hi DJ, No, in the Odyssey, Caesar is not mentioned. Homer wrote thousands of years before Caesar was born, so he id not know anything about him of course, and did not write about him. However, the Greek