The half-life of the radioactive element unobtanium-29 is 10 seconds. If 32 grams of unobtanium-29 are initially present, how many grams are present after 10 seconds? 20 seconds? 30 seconds? 40 seconds? 50 seconds? The amount left after 10 seconds is grams. The amount left after 20 seconds is grams. The amount left after 30 seconds is grams. The amount left after 40 seconds is grams. The amount left after 50 seconds is grams. (Round to one decimal place.)

The half-life of the radioactive element unobtanium-29 is 10 seconds. If 32 grams of unobtanium-29 are initially present, how many grams are present after 10 seconds? 20 seconds? 30 seconds? 40 seconds? 50 seconds? The amount left after 10 seconds is grams. The amount left after 20 seconds is grams. The amount left after 30 seconds is grams. The amount left after 40 seconds is grams. The amount left after 50 seconds is grams. (Round to one decimal place.)

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter5: Inverse, Exponential, And Logarithmic Functions

Section: Chapter Questions

Problem 15T

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Question

The half-life of the radioactive element unobtanium-29 is 10 seconds. If 32 grams of unobtanium-29 are initially present, how many grams are present after 10 seconds? 20 seconds? 30 seconds? 40 seconds? 50 seconds?
The amount left after 10 seconds is
grams.
The amount left after 20 seconds is
grams.
The amount left after 30 seconds is
grams.
The amount left after 40 seconds is
grams.
The amount left after 50 seconds is
grams.
(Round to one decimal place.)

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