ap calculus
 👍 1
 👎 0
 👁 395

 👍 0
 👎 0
posted by Reiny
Respond to this Question
Similar Questions

Math
A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a
asked by Vanessa on April 5, 2014 
Math
A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a
asked by Vanessa on April 6, 2014 
College Calculus
A radioactive substance has a halflife of 27 years. Find an expression for the amount of the substance at time t if 20 grams were present initially.
asked by Jaken on November 14, 2016 
algebra
A radioactive substance decays according to the formula A=A0e^kt where A0 is the initial amount of substance (in grams) A is the amount of substance(in grams) after t years k is a constant The halflife of the substance is 10
asked by enhle on April 3, 2015 
calculus
The rate at which an amount of a radioactive substance decays is modeled by the differential equation dA/dt = kA, where A is the mass in grams, t is the time in years, and k is a constant. Answer the following. a) If a 100gram
asked by ronnieday on March 19, 2012 
Math
Suppose f(t) = P0e^0.3t grams of radioactive substance are present after t seconds. If 200 grams of substance are present initially, how much is present after 4 seconds? What is the halflife of the substance?
asked by Freud Mark on September 23, 2016 
math
a radioactive substance decays at an annual rate of 24 percent. If the initial amount of the substance is 640 grams, which of the following functions (f) models the remaining amount of the substance, in grams, t years later?
asked by lilly on April 5, 2019 
Calculusderivatives
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
asked by Matthew on March 6, 2012 
math
a radioactive substance decays at an annual rate of 24 percent. If the initial amount of the substance is 640 grams, which of the following functions (f) models the remaining amount of the substance, in grams, t years later? a)
asked by lilly on April 14, 2019 
Math
1. If one wishes to accumulate a 30,000fund in 5 years, how much should he deposit now at 18% compounded quarterly? 2. If a bank offers a rate of 4.5% compounded semiannually, how much should you deposit to accumulate 50,000 in
asked by Brianne on November 4, 2014