Answer:
approximately 27 grams
Work Shown:
Half life formula
y = A*(0.5)^(x/H)
where,
A = starting amount = 30 grams
H = half life period = 90 years
x = number of years that pass by = 12
y = amount left over after x years
Let's plug the values for x, A and H into the formula to find y
y = A*(0.5)^(x/H)
y = 30*(0.5)^(12/90)
y = 27.3516746567466
y = 27 .... rounding to the nearest whole number
5i square root 2
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Answer: 2 + x
Step-by-step explanation:
The <em>trigonometric</em> expression is equivalent to the <em>trigonometric</em> expression .
<h3>How to prove a trigonometric equivalence</h3>
In this problem we must prove that <em>one</em> side of the equality is equal to the expression of the <em>other</em> side, requiring the use of <em>algebraic</em> and <em>trigonometric</em> properties. Now we proceed to present the corresponding procedure:
The <em>trigonometric</em> expression is equivalent to the <em>trigonometric</em> expression .
To learn more on trigonometric expressions: brainly.com/question/10083069
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Answer:
then it becomes a negitive
Step-by-step explanation: