Answer:
Step-by-step explanation:
We want to simplify:
Recall the Pythagorean Identity:
So:
Substitute:
Factor. We can use the difference of two squares pattern:
Cancel. Hence:
Equivalent expressions.
parentheses.
(wx)yz
wx(yz)
i hope this helps :)
Answer:
9/2
Step-by-step explanation:
Answer: Arrows are used to show the feeding relationship between the animals.
Step-by-step explanation: The arrow points from the organism being eaten to the organism that eats it.
Answer:4.1
Step-by-step explanation: