A scientist is studying 24 milligrams of a radioactive material that has a half-life of 2 minutes. This means that every 2 minutes, half of the radioactive material decays. Which graph best shows the relationship between time and the amount of the material that remains?

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

What ia the sum if the first 7 terms of the geometric series

The stairs leading from the ground to the entrance of a plane forms a right triangle with the ground. if the distance of the stairs measures 22 feet and the ground distance measures 11 feet, how high is the entrance to the plane from the ground? which diagram represents this scenario? / 22ft © 22ft 11 ft 11 ft 22 it