Answer:
cot(x)
Step-by-step explanation:



Recall the Pythagorean Identity 
Answer:
What type of math is this
Step-by-step explanation:
algebra?
Answer:
The answer is 75 inches.
Step-by-step explanation:
If Alice is 10 inches, she is 2/3 as tall as the door. At her regular height, to be 2/3 as tall as the door the door would have to be 75 inches high.
<span>(x−5)^ 2 = (x-5)(x-5) = x^2 - 10x + 25 (answer)</span>