1.40 as a fraction is a 1 40/100 simplify it. 1 20/50. 1 2/5
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Answer:
A = 0.75 gram or 1 gram
Step-by-step explanation:
The half-life of carbon 14 is years. How much would be left of an original -gram sample after 2,292 years? (To the nearest whole number).
We can use the following formula for half-life of 
to find out how much is left from the original sample after 2,292 years:
where:
<em>A</em> is the amount left of an original gram sample after <em>t</em> years, and
is the amount present at time <em>t</em> = 0.
The half-life of is the time <em>t</em> at which the amount present is one-half the amount at time <em>t </em>= 0.
If 1 gram of is present in a sample,
Solve for A when t = 2,292:
Substituting = 1 gram into the decay equation, and we have:
A = 0.75 g or 1 g
The absolute value of any number will always be a positive number. That is the definition of an absolute value. It is usually denoted by the || bar. For example, when you want to find the sum of 1 and ⁻5, you write it as |1 + ⁻5|. Even though the actual answer is ⁻4, because it is in absolute value, you'll report it as +4 instead.
Answer:
8/3
Step-by-step explanation:
(4/-5)/(-3/10)
(4/-5) x (-10/3)
-40/-15
40/15
8/3
