Wednesday
April 1, 2015

Homework Help: Calculus-derivatives

Posted by Matthew on Tuesday, March 6, 2012 at 7:09pm.

Verify if these are correct answers.

1. The derivative of f(x)=e^2x -e^-2x

is f'(x)=2e^2x - 2e^-2x?

2.A certain radioactive substance is decaying so that at time t, measured in years, the amount of the substance, in grams, given by the function f(x)=3e^-3t. What is the rate of decay of the substance after half a year?

Answer: -3.24g/year?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Calculus - a certain radioactive substance is decaying so that at time t, ...
Math - A radioactive substance decays according to the formula Q(t) = Q0e−...
Math - A radioactive substance decays according to the formula Q(t) = Q0e−...
calculus - The rate at which an amount of a radioactive substance decays is ...
Calculus - The half life of a certain radioactive substance is 10 years. How ...
precal - If the half-life of a certain radioactive substance is 2000 years, ...
calculus - Carbon-14 is a radioactive substance produced in the Earth's ...
ap calculus - suppose that the amount in grams of a radioactive substance ...
calculus - A sample of a radioactive substance decayed to 94.5% of its original ...
math - The decay of 333 mg of a radioactive substance is given by A(t) = 333e-0....

Members