Answer:
area = Iw
Explanation:
area = lw
where
l = length
w = width
Therefore,
The area of the shaded region = area of the big rectangle - area of the small rectangle
Therefore,
area of the big rectangle = (x+10)(2x+5) = 2x² + 5x + 20x + 50 = 2x² + 25x + 50
area of the small rectangle = (x+1)(x+1) = x² + x + x + 1 = x² + 2x + 1
area of the shaded region = 2x² + 25x + 50 - ( x² + 2x + 1)
area of the shaded region = 2x² + 25x + 50 - x² - 2x - 1
area of the shaded region = x² - 23x - 49
The true statement about the causation between the variables it is a weak negative correlation, and it is not likely causal.
<h3>What is causation between the variables?</h3>
The causation between the variables shows that the occurrence of one event causes the occurrence of the other.
The informal relationship between two events.
Thus, the correct option is A, it is a weak negative correlation, and it is not likely causal.
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The <em>effective nuclear charge</em> is the difference between the atomic number an element and the shielding constant. Hence, the atom which experiences the greatest nuclear charge is Sulphur, S.
<u>Calculating the greatest effective nuclear charge</u>, :
- Z = Atomic number ; S = shielding constant
<u>For Magnesium, Mg</u>:
Z = 12
S = 10
<u>For Aluminium, Al</u>:
Z = 13
S = 10
For Sulphur, , S:
Z = 16
S = 10
Therefore, the atom whuch experience the greatest 
is Sulphur.
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Answer:
misunderstood and no respect
