Example 3. 9. A second question on Mr. Roberts' math test is shown. Radium-226 is a radioactive element that decays by 2-1 of its mass after about 1600 years. Determine the remaining mass of 16 g of radium-226 after a) 1600 years b) 8000 years

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.1: Equations
Problem 75E
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For help with question 9, refer to Example 3.
9. A second question on Mr. Roberts' math test is shown.
Radium-226 is a radioactive element that decays by 2–1 of its mass
after about 1600 years. Determine the remaining mass of 16 g of
radium-226 after
a) 1600 years
b) 8000 years
B
10. How small is one billionth?
Connect
a) Write one thousand as a power of 10.
b) Write one thousandth as a fraction, as a power of and then as
epower of 10.
) Write one millionth as a power of 10.
10
onds is
ys.
onds is
ears!
d) Write one billionth as a power of 10.
e) Write the ratio of one thousandth to one billionth as a power
of 10. How many times larger is one thousandth compared to
one billionth?
11. Evaluate the power in each statement. Express your answers as whole
numbers or fractions.
a) One kilobyte is 210 bytes.
b) One byte is 2-10 kilobytes.
) One megabyte is (210)² bytes.
d) One byte is (2-10)³ gigabytes.
e) One bit is 2-3 bytes.
1) One bit is 2-40 × 2-3 terabytes.
Transcribed Image Text:(9) For help with question 9, refer to Example 3. 9. A second question on Mr. Roberts' math test is shown. Radium-226 is a radioactive element that decays by 2–1 of its mass after about 1600 years. Determine the remaining mass of 16 g of radium-226 after a) 1600 years b) 8000 years B 10. How small is one billionth? Connect a) Write one thousand as a power of 10. b) Write one thousandth as a fraction, as a power of and then as epower of 10. ) Write one millionth as a power of 10. 10 onds is ys. onds is ears! d) Write one billionth as a power of 10. e) Write the ratio of one thousandth to one billionth as a power of 10. How many times larger is one thousandth compared to one billionth? 11. Evaluate the power in each statement. Express your answers as whole numbers or fractions. a) One kilobyte is 210 bytes. b) One byte is 2-10 kilobytes. ) One megabyte is (210)² bytes. d) One byte is (2-10)³ gigabytes. e) One bit is 2-3 bytes. 1) One bit is 2-40 × 2-3 terabytes.
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