calculus
posted by cassie .
I'm having trouble with these two problems. If someone can help me with the first one I can probably get the second one on my own. I think that I have to factor the bottom but I just cant get it.
lim (3x+7)/(8x^23x+11)
x> infinity

multipy numerator and denomiantor by 1/x^2
lim (3/x+7/x^2)/(83/x+11/x^2)
lim numerator is zero
lim denominator is 8
lim then must be zero.
Respond to this Question
Similar Questions

Algebra
I'm having trouble working out these problems. Could someone please assist? 
direct variation
could someone please help me with these problems i am having trouble. If y=36 when x =6 find x when y = 42 If y=18 when x=6 find x when y=6 If y =12 when x= 15 find x when y =21 If y=6.6 when x=9.9 find y when x =6.6 If y=6 when … 
algebra
Can someone please help me with the following? 
math(please help me!!)
4x^2+20x+5y+xy *you have to factor by grouping,for more information just ask me* First, take out 4x from the first two and y from the second: 4x(x+5) + y(x+5). Then combine the 4x and the y: (4x+y)(x+5). That's your answer. thanks. … 
Math Please Help me!!!
3x^2+17x+10 *You have to factor completley but I don't know how too.Please help.! (3x+2 )(x + 5) Factoring asks this question: what two factors of 10 add to 17 when one is multiplied by three? 
math,help,factoring
i need help i don't know how to do the next step. factor by grouping x^33x^2+4x12 so what i have so far is this =(x^33x^2)+(4x12) =x(x^23x)+4(x3) from here i don't know... and then this one is driving me insane this next one... … 
Simplifying Rational Expressions
1. 4x12/4x 2. d+7/d^249 3.t225/t^2+t20 4.2x^2+6x+4/4x^212x16 5.6y/y^22y24 Can someone help me with these,please,lol,I'm brain dead Try to factor where you can, then simplify as much as you can. I'll show you the first two problems; … 
Algebra
I am trying to factor polynomials by grouping the first two terms and the last two terms, but I am having some issues, I have done a few correct since I can look at the answers to the odd problems but it is taking me arund 25 minutes … 
calculus
Can someone help me understand how to find the derivative of these two problems: (t^21/t^2+2)^3=y and y=sin^32x? 
Algebra 1
I'm having trouble solving x=2(x1)+6 I understand but I get confused on some of the problem and this is one of them. It's probably very simple to get the answer but can someone please just walk me through on trying to solve it?