Answer:
A is 157 B is 157 and F is 42
Step-by-step explanation:
i am not 100% sure but i am like 80% sure
Answer: Y=height
Step-by-step explanation: if we had the height of the person we could fill it in for y. so if we have y (being the variable) that varies based on the gathered information.
The answer is 126, so it would be D:)
A non-negative root of a number is called Square Root
Answer:
−π
----
4
Step-by-step explanation:
Alright, archtan /
tan
−
1
(
x
)
is the inverse of tangent. Tan is
sin
cos
. Like the inverse of sin, the inverse of tan is also restricted to quadrants 1 and 4.
Knowing this we are solving for the inverse of tan -1. We are basically being asked the question what angle/radian does tan(-1) equal. Using the unit circle we can see that tan(1)= pi/4.
Since the "Odds and Evens Identity" states that tan(-x) = -tan(x). Tan(-1)= -pi/4.
Knowing that tan is negative in quadrants 2 and 4. the answer is in either of those two quadrants. BUT!!! since inverse of tan is restricted to quadrants 1 and 4 we are left with the only answer -pi/4.
