Math  Limits
posted by Anonymous .
Find the derivative of f(x) = 1000 / (0.1x + 1) where 10 <= x <= 70

Math  Limits 
Reiny
write it as
y = 1000(.1x + 1)^1
dy/dx = 1000(.1x + 1)^2 (.1)
= 100/(.1x + 1)^2
The function and its derivative are both defined for your given domain.
Respond to this Question
Similar Questions

limit calc question
2 questions!!! 1. Limit X approaching A (X^1/3a^1/3)/ xa 2. LiMIT x approaching 0 (1/3+x – 1/3) /x On the first, would it help to write the denominator (xa) as the difference of two cubes ((x^1/3 cubed  a^1/3 cubed) second. use … 
calc
derivative of (x^3/6)+(1/2x)? i got (x^2/2)(1/2x^2) is that correct? 
Math
Find the amount of money in the account at the end. $1000.00, 4 years, 7% compounded semiannually A=P(1+r/n)^nt r=0.07, t=4, P=$1000.00, n=2 A=P(1+r/n)^nt A=$1000.00(1+0.07/2)^24 A=$1000(1.035)^8 A=$1000(1.316809037) A=$1,316.809037 … 
Calculus  derivatives
Okay, I want to find the derivative of (x^x)^(x^x)... Well, I already went through the process of finding the derivative of just x^x (I used ln to do this). This is what I found... dy/dx = x^x(lnx+1) So now I want to find the derivative … 
Maths Calculus Derivatives & Limits
Using the definition of the derivative evaluate the following limits 1) Lim h> 0 [ ( 8 + h )^1/3  2 ] / h 2) Lim x > pi/3 ( 2cosx  1 ) / ( 3x  pi) 
Calculus (Derivatives)
What is the derivative of the this functon? 
Math  Limits
What is the derivative of f(x) = 10 + sqrt(2x + 32)? 
Calculus
1.) Find the derivative of tan (sec x). 2.) Find the derivative if 1/x in four ways, using the limit process, power rule, quotient rule and implicit differentiation. 3.) Show that the derivative of sec^1 x is 1/(x*sqrt(x^2 1)). … 
Calculus 1
Find the derivative of f'(x) of f(x)=4sqrt(x) using limits 
math
(MC) If the compound interest on $1000 for two years at 9% p.a., payable halfyearly is $x, find x. A) 1000x9/100x2 B) 1000(1+9/100)⁴ C) 1000(1+4.5/100)⁴ D) 1000(1+9/100)²1000 E) 1000(1+4.5/100)⁴1000