Answer:
New predatory animals .
Explanation:
A valid reason on why a "predatory" animal would disappear or decrease in great numbers is new animals being involved such as animals eating those "predatory" animals or them eating the food source of the original animal . Humans are also a factor but i'm pretty sure they are not hunting them ! I hope this helped
Based on <u>the </u><u>norm</u><u> of </u><u>reciprocity</u>, you will feel obligated to do a favor for a coworker when he or she performs a large favor for you.
<h3>What is the norm of reciprocity?</h3>
The norm of reciprocity can be defined as a social convention requires that a person repay in kind a favor or assistance that was done to them, especially to the performer of such act.
Based on <u>the </u><u>norm</u><u> of </u><u>reciprocity</u>, we can infer and logically deduce that you will feel obligated to do a favor for a coworker when he or she performs a large favor for you.
Read more on norm of reciprocity here: brainly.com/question/6860006
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Answer:
18 + 81 = 9(x² + 6x + 9) 11 = (x + 3)²
Explanation:
because This is the value that completes the square. However, since the entire square is multiplied by 9, this value must be multiplied by 9 before we can add it across the equals:
18 + 9 (9) = 9 (x² + 6x + 9)
18 + 81 = 9 (x² + 6x + 9)
99 = 9 (x² + 6x + 9)
Dividing both sides by 9, we have:
11 = x² + 6x + 9
11 = (x + 3) ²
