Answer:

Step-by-step explanation:
Let
x-------> the length side of the rectangle
y------> the width side of the rectangle
we know that
---> equation A
---> equation B (given problem)
substitute equation B in equation A

so
the coordinate of the top-left vertex of the rectangle is equal to

Answer:
C) -12y-8y-4
Step-by-step explanation:
Step-by-step explanation:
sin⁴ x − sin² x
Factor:
(sin² x) (sin² x − 1)
Pythagorean identity:
(1 − cos² x) (-cos² x)
Distribute:
-cos² x + cos⁴ x
cos⁴ x − cos² x