Answer: 60
Step-by-step explanation: I did the math but sorry if this is wrong
-1.25 or -1 1/4 that’s because the dot is in between a half and a whole number so one half divided by two is 1/4
The question is related to trigonometry and we have to use the formula of double angle .
Here we use double angle formula of tangent function which is

Given expression is

Comparing it with double angle formula, we will get x = 5
SO the required expression is equal to


So the answer is tan(10) .
Answer:
4
Step-by-step explanation:
The diagonals are equal length:


2400 divided by 44% which is 1056.
(sneaky way to put history in math, btw...)