Answer:
n = -4 n=3
Step-by-step explanation:
n^2+ n-12
What 2 numbers multiply to -12 and add to 1
4*-3 = -12
4-3 =1
(n+4) (n+3) =0
Using the zero product property
n+4 = 0 n-3 =0
n = -4 n=3
A kilogram of silver contains 5.58×10²⁴ atoms.
<h3>How to determine the parameter</h3>
From the question given above, the following data were obtained:
- 1 mole of silver = 107.9 g
- Number of atoms in 1 mole of silver = 6.02×10²³ atoms.
- Number of atoms in a kilogram of silver is unknown
Now, we shall convert 1 kg of silver to grams (g).
This can be obtained as follow:
1 kg = 1000g
Therefore, 1 kg of silver is equivalent to 1000g.
Now, let's determine the number of atoms in 1 kg (i.e 1000 g) of silver as follow:
If 107.9 g of silver contains 6.02×10²³ atoms.
Then, 1000 g of silver will contain:
= (1000 × 6.02×10²³) / 107.9
= 5.58×10²⁴ atoms.
Thus, a kilogram of silver contains 5.58×10²⁴ atoms.
Learn more about atoms here:
brainly.com/question/6258301
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Answer:
R(n)=100,000(0.5)^n
Step-by-step explanation:
The answer is 8i.
i = √(-1)
√(-64) = √((-1) * 64)
= √(-1) * √64
= i * √8²
= i * 8
= 8i
You would do pemdas or (), exponits, *, division, +,-
