The number of copper atoms in a penny of copper is 6.38×10²² atoms.
Given that,
A penny contains 0.106 mol of copper, how many atoms of copper are in a penny is to be determined.
<h3>What is simplification?</h3>
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Atom in 1 mole = 6.022×10²³ atom / mole
Number of copper atoms = 0.106 × 6.022×10²³
Number of copper atoms = 6.38×10²² atoms
Thus, the number of copper atoms in a penny of copper is 6.38×10²² atoms.
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X is the number, therefore;
x+50% of x=210
50%=50/100=0.5
We can suggest this equation:
x+0.5x=210
1.5x=210
x=210/1.5
x=140
Asnwer: the number would be 140.
2x-y=1
Becomes y= 2x-1
4x-2y=6
Becomes y= 2x-3
The slopes are the same so the lens are parallel
Answer:
Ok Now this is Hard for me Lets Just Say That Its 1 each day if though its not the answer
Step-by-step explanation: anyway Nothing
The value of cos(L) in the triangle is Five-thirteenths
<h3>What are right triangles?</h3>
Right triangles are triangles whose one of its angle has a measure of 90 degrees
<h3>How to determine the value of cos(L)?</h3>
The value of a cosine function is calculated as:
cos(L) = Adjacent/Hypotenuse
The hypotenuse is calculated as
Hypotenuse^2 = Opposite^2 + Adjacent^2
So, we have:
Hypotenuse^2 = 12^2 + 5^2
Evaluate
Hypotenuse^2 = 169
Take the square root of both sides
Hypotenuse = 13
So, we have
Adjacent = 5
Hypotenuse = 13
Recall that
cos(L) = Adjacent/Hypotenuse
This gives
cos(L) = 5/13
Hence, the value of cos(L) in the triangle is Five-thirteenths
Read more about right triangles at:
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