Answer:
48 yards
Step-by-step explanation:
we know that
The circumference of a circle is equal to
we have
substitute
The number of mole of pure 11C (carbon-11) initially present is 0.2727 mole
<h3>Description of mole </h3>
The mole of a substance is related to it's mass and molar mass according to the following equation
Mole = mass / molar mass
With the above formula, we can obtain the number of mole of pure 11C. Detail below:
<h3>How to determine the mole of 11C</h3>
From the question given, the following data were obtained:
- Molar mass of 11C = 11 g/mol
- Mass of 11C = 3 g
- Mole of 11C =?
Mole = mass / molar mass
Mole = 3 / 11
Mole = 0.2727 mole
Therefore, the number of mole of pure 11C initially present is 0.2727 mole
Learn more about mole:
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Answer:
12 1/2 cups of flour
Step-by-step explanation:
2 1/2 cups for each batch
5 batches
2 1 /2 x 5 =
12 1 /2
Use FOIL
<span>(1-p)(1+p+p^2+p^3+p^4+p^5+p^6)
</span><span>1+p+p^2+p^3+p^4+p^5+p^6 -1p - p^2 - p^3 - p^4 - p^5 - p^6
</span><span>1 + p -1p <------------------Answer</span>
Answer:
The solution is B) (2, 
).
Step-by-step explanation:
This system of equations can be solved by elimination, where we add the two equations together to eliminate one of the variables and solve for the remaining variable:
x + 2y = 3
<u>3x - 2y = 5</u>
4x = 8 or x = 2
To solve for 'y', plug in the value of x: 2 + 2y = 3 or 2y = 1 or y =
Putting the values into the point (x, y) = (2, )
