The area of a parallelogram is modeled by the formula, A = lw. Solve the equation for w.
1 answer:
Hello there! Thank you for asking your question here at Brainly! I will be assisting you with answering this question today, and will teach you how to handle it on your own in the future.
First, let's look at our problem.
"A = L * W, solve for W."
This is basic algebra, but I will teach you how to tackle this problem, so you can do it on your own.
So, we have the following equation:
A = L * W
To solve for W, we need to get it alone on one side of the equation. Currently, it is not alone, but rather is being multiplied by L.
To isolate W, we need to perform the opposite order of operations on both sides of the equation.
A = L * W
Divide both sides by L to isolate and solve for W.
W =
is our solution.
The following equation matches the answer choice "C".
Your answer is "C."
I hope this helps!
First, let's look at our problem.
"A = L * W, solve for W."
This is basic algebra, but I will teach you how to tackle this problem, so you can do it on your own.
So, we have the following equation:
A = L * W
To solve for W, we need to get it alone on one side of the equation. Currently, it is not alone, but rather is being multiplied by L.
To isolate W, we need to perform the opposite order of operations on both sides of the equation.
A = L * W
Divide both sides by L to isolate and solve for W.
W =
The following equation matches the answer choice "C".
Your answer is "C."
I hope this helps!
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To solve this question we will use two important formulas.
The first formula involves the calculation of the decay constant, which is to be found as:
where is the half life of Pb-210 which is given to be 22 years in the question.
Thus,
Now, we will use the second formula which is called the function of decay formula and is given as:
where percentage of Pb-210 remaining in the bone at present, which in our case is 67% or 0.67
percentage of Pb-210 to start with, which is always 100% or 1.
Plugging in all these values in the decay formula we are supposed to find the time, .
Taking natural log on both sides we get:
years
Therefore the bone fragment is about 12.71 years old.