Answer:

Step-by-step explanation:
Given:
The expression is

To find:
The value of the given expression when y=-5.
Solution:
We have,

Putting y=-5, we get




Therefore, the value of the given expression is 50 when y=-5.
Answer:
I believe the second one
Step-by-step explanation:
Because it's angles are all less than 90 degrees so it could be an acute triangle. I am sorry if it is wrong.
It is in the tenths place, 7/10