Saturday
October 25, 2014

Homework Help: Calculus

Posted by Sarah on Thursday, April 10, 2014 at 4:44pm.

I was wondering if you would be able to check if my answers are correct:

1. An oil tank is being drained for cleaning. After t minutes there are v litres of oil left in the tank, where v(t)=40(20-t)^2, 0<=t<=20. Determine the rate of change at the time t=10.

For this question i got -400L/min by substituting 10 into the equation.

2. Consider the function f(x)=5/2+x.
a) Determine the slope at the point with x-coordinate 1

To answer this question I used the formula m=lim h->0 f(x+h)-f(x)/h. Then I got lim h->0 (5/3+h)-(5/3)/h and my answer was 1/9.

b) Determine the equation tangent to the curve f(x) at the point with x-coordinate 1

my answer for this is y=1/9x+14/9

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Calculus - I have a couple of questions and i wanted to know if my answers are ...
Calculus - I am re-posting this question because i wrote the incorrect function ...
MATH - Brandon has a 55-gallon fish tank. He estimates he can drain the tank at ...
math - Brandon has a 55-gallon fish tank. He estimates he can drain the tank at ...
algebra - Brandon has a 55-gallon fish tank. He estimates he can drain the tank ...
maths - 1)a linear function is represented by f(x)=2x+7 which of the following ...
Math - Calculus - Im doing some practice questions and im stumped on this one. ...
math - A tank contains 50 gallons of a solution composed of 90% water and 10% ...
Math - An oil tank is the shape of an inverted right circular cone with the ...
Math/Physics - Please check my work below and comment. A tank initially contains...

Search
Members