Evolutionary Theory.
Cyclical Theory.
Economic (Mandan) Theory of Social Change.
Conflict Theory.
Technological Theory.
Answer:
1)
stromatolites
2)
anoxic
i don't know that if this is right or wrong sorry if it is wrong
Blake's mistake is (d) He divided the exponents in the parentheses instead of subtracting.
<h3>How to determine the mistake</h3>
The expression is given as:
![(\frac{x^{12}}{x^{-3}})^5 = \frac{1}{x^{-20}}](https://tex.z-dn.net/?f=%28%5Cfrac%7Bx%5E%7B12%7D%7D%7Bx%5E%7B-3%7D%7D%29%5E5%20%3D%20%5Cfrac%7B1%7D%7Bx%5E%7B-20%7D%7D)
The actual solution is as follows:
![(\frac{x^{12}}{x^{-3}})^5 = (x^{12+3})^5](https://tex.z-dn.net/?f=%28%5Cfrac%7Bx%5E%7B12%7D%7D%7Bx%5E%7B-3%7D%7D%29%5E5%20%3D%20%28x%5E%7B12%2B3%7D%29%5E5)
Add the exponents
![(\frac{x^{12}}{x^{-3}})^5 = (x^{15})^5](https://tex.z-dn.net/?f=%28%5Cfrac%7Bx%5E%7B12%7D%7D%7Bx%5E%7B-3%7D%7D%29%5E5%20%3D%20%28x%5E%7B15%7D%29%5E5)
Multiply 15 by 5
![(\frac{x^{12}}{x^{-3}})^5 = x^{75}](https://tex.z-dn.net/?f=%28%5Cfrac%7Bx%5E%7B12%7D%7D%7Bx%5E%7B-3%7D%7D%29%5E5%20%3D%20x%5E%7B75%7D)
Blake's simplified expression showed that:
He divided 12 by -3 and then multiplied the result by 5
Hence, Blake's mistake is (d) He divided the exponents in the parentheses instead of subtracting.
Read more about expressions at:
brainly.com/question/4344214
ANSWER: A
I would say answer A is correct. The other choices do not make sense