Answer:
Step-by-step explanation:
Congruent sides are called legs.
Third side is called the base.
For b it's 39 because you multiply 5 and 7 giving you 35 then add 4 Wich equals 39. I might be incorrect. check it out.
The one near the five is in the hundreds place and the one near the 4 is in the tenth place.
Feel free to message me if you need help on another problem.
Answer:
sin^2α
Step-by-step explanation:
I will just pose x instead of alpha here to make things simpler

we know that sin^2x = 1 - cos^2x so...


we can rewrite using trigonometric identities (tan = sin/cos)...

Answer:
Not a function because it does not pass the Vertical Line Test.