The answer is 8+1 which is D
Answer:
Option C.
Step-by-step explanation:
We start with the expression:

where y > 0. (this allow us to have y inside a square root, so we don't mess with complex numbers)
We want to find the equivalent expression to this one.
Here, we can do the next two simplifications:

And:

If we apply these two to our initial expression, we can rewrite it as:


Here we can use the second simplification again, to rewrite:

So, concluding, we have:

Then the correct option is C.
The answer is m= 1 which is A
Answer:
x=23.2
Step-by-step explanation:
because 3 is the opposite and 7 is the adjacent, we can use tangent (opposite over adgacent) so 3/7 = tan(x) then you take the inverse tangent of both sides to get inversetangent(3/7)=x and then you plug that in the calculator and get that x is 23.2