Purchase Solution

Mathematics - Algebra

Not what you're looking for?

Ask Custom Question

The formula y=X*c^(t/T) can be used to describe growth and decay in nature. The final amount is y, the initial amount is X, c is the constant of proportionality, t is time and T is the time per cycle of c, when you use the growth and decay formula to solve a problem involving half-life, you will use c=1/2 and T is the half-life. Carbon-14 tests are often performed to determine the age of an organism that died a long time ago. Carbon-14 has a half-life of 5730 yrs. if a turtle shell is found and tested to have 65% of its original carbon-14, how old is it?

Purchase this Solution

Solution Summary

Step-wise solution is provided.

Purchase this Solution


Free BrainMass Quizzes
Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.