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)...

The answer is the 3rd option. The first change is a rotation then a reflection.
Answer:
She worked a total of 9 1/4 hours
She still owes her uncle $5.90
Step-by-step explanation:
29.95/2.60
6+1 3/4+1 1/2
9.25*2.60= 24.05
29.95-24.05= 5.90